Home / 13,184.32-19,776.48-5,290.44

Finding the Fourth Proportional to 13,184.32, 19,776.48 and 5,290.44

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Solution

The fourth proportional to 13,184.32, 19,776.48 and 5,290.44 is: 7,935.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,184.32 : 19,776.48 = 5,290.44 : x
  2. Step 2: Convert to fraction form
    13,184.32/19,776.48 = 5,290.44/x
  3. Step 3: Cross multiply
    13,184.32x = 19,776.48 × 5,290.44
  4. Step 4: Simplify right side
    13,184.32x = 104,626,280.85
  5. Step 5: Solve for x
    x = 104,626,280.85/13,184.32
  6. Step 6: Final answer
    x = 7,935.66

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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.