Home / 13,246.93-19,870.80-5,456.35

Finding the Fourth Proportional to 13,246.93, 19,870.80 and 5,456.35

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Solution

The fourth proportional to 13,246.93, 19,870.80 and 5,456.35 is: 8,184.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.93 : 19,870.80 = 5,456.35 : x
  2. Step 2: Convert to fraction form
    13,246.93/19,870.80 = 5,456.35/x
  3. Step 3: Cross multiply
    13,246.93x = 19,870.80 × 5,456.35
  4. Step 4: Simplify right side
    13,246.93x = 108,422,039.58
  5. Step 5: Solve for x
    x = 108,422,039.58/13,246.93
  6. Step 6: Final answer
    x = 8,184.69

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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.