Home / 15,432.50-21,307.09-9,554.74

Finding the Fourth Proportional to 15,432.50, 21,307.09 and 9,554.74

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Solution

The fourth proportional to 15,432.50, 21,307.09 and 9,554.74 is: 13,191.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,432.50 : 21,307.09 = 9,554.74 : x
  2. Step 2: Convert to fraction form
    15,432.50/21,307.09 = 9,554.74/x
  3. Step 3: Cross multiply
    15,432.50x = 21,307.09 × 9,554.74
  4. Step 4: Simplify right side
    15,432.50x = 203,583,705.11
  5. Step 5: Solve for x
    x = 203,583,705.11/15,432.50
  6. Step 6: Final answer
    x = 13,191.88

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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.