Home / 18,275.60-25,220.36-9,892.10

Finding the Fourth Proportional to 18,275.60, 25,220.36 and 9,892.10

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Solution

The fourth proportional to 18,275.60, 25,220.36 and 9,892.10 is: 13,651.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.60 : 25,220.36 = 9,892.10 : x
  2. Step 2: Convert to fraction form
    18,275.60/25,220.36 = 9,892.10/x
  3. Step 3: Cross multiply
    18,275.60x = 25,220.36 × 9,892.10
  4. Step 4: Simplify right side
    18,275.60x = 249,482,197.05
  5. Step 5: Solve for x
    x = 249,482,197.05/18,275.60
  6. Step 6: Final answer
    x = 13,651.11

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.