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Finding the Fourth Proportional to 15,232.20, 21,030.84 and 9,867.60

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Solution

The fourth proportional to 15,232.20, 21,030.84 and 9,867.60 is: 13,624.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,232.20 : 21,030.84 = 9,867.60 : x
  2. Step 2: Convert to fraction form
    15,232.20/21,030.84 = 9,867.60/x
  3. Step 3: Cross multiply
    15,232.20x = 21,030.84 × 9,867.60
  4. Step 4: Simplify right side
    15,232.20x = 207,523,916.78
  5. Step 5: Solve for x
    x = 207,523,916.78/15,232.20
  6. Step 6: Final answer
    x = 13,624.03

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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.