Home / 15,885.40-23,828.10-9,308.20

Finding the Fourth Proportional to 15,885.40, 23,828.10 and 9,308.20

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Solution

The fourth proportional to 15,885.40, 23,828.10 and 9,308.20 is: 13,962.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,885.40 : 23,828.10 = 9,308.20 : x
  2. Step 2: Convert to fraction form
    15,885.40/23,828.10 = 9,308.20/x
  3. Step 3: Cross multiply
    15,885.40x = 23,828.10 × 9,308.20
  4. Step 4: Simplify right side
    15,885.40x = 221,796,720.42
  5. Step 5: Solve for x
    x = 221,796,720.42/15,885.40
  6. Step 6: Final answer
    x = 13,962.30

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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.