Home / 13,011.39-19,520.19-4,246.32

Finding the Fourth Proportional to 13,011.39, 19,520.19 and 4,246.32

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Solution

The fourth proportional to 13,011.39, 19,520.19 and 4,246.32 is: 6,370.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,011.39 : 19,520.19 = 4,246.32 : x
  2. Step 2: Convert to fraction form
    13,011.39/19,520.19 = 4,246.32/x
  3. Step 3: Cross multiply
    13,011.39x = 19,520.19 × 4,246.32
  4. Step 4: Simplify right side
    13,011.39x = 82,888,973.20
  5. Step 5: Solve for x
    x = 82,888,973.20/13,011.39
  6. Step 6: Final answer
    x = 6,370.49

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Half scale
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Double scale
Find fourth proportional to 13,012.39, 19,521.69 and 4,247.32
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.