Home / 16,861.56-23,259.60-9,787.20

Finding the Fourth Proportional to 16,861.56, 23,259.60 and 9,787.20

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Solution

The fourth proportional to 16,861.56, 23,259.60 and 9,787.20 is: 13,500.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,861.56 : 23,259.60 = 9,787.20 : x
  2. Step 2: Convert to fraction form
    16,861.56/23,259.60 = 9,787.20/x
  3. Step 3: Cross multiply
    16,861.56x = 23,259.60 × 9,787.20
  4. Step 4: Simplify right side
    16,861.56x = 227,646,357.12
  5. Step 5: Solve for x
    x = 227,646,357.12/16,861.56
  6. Step 6: Final answer
    x = 13,500.91

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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.