Home / 10,635.06-16,032.21-9,921.45

Finding the Fourth Proportional to 10,635.06, 16,032.21 and 9,921.45

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Solution

The fourth proportional to 10,635.06, 16,032.21 and 9,921.45 is: 14,956.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,635.06 : 16,032.21 = 9,921.45 : x
  2. Step 2: Convert to fraction form
    10,635.06/16,032.21 = 9,921.45/x
  3. Step 3: Cross multiply
    10,635.06x = 16,032.21 × 9,921.45
  4. Step 4: Simplify right side
    10,635.06x = 159,062,769.90
  5. Step 5: Solve for x
    x = 159,062,769.90/10,635.06
  6. Step 6: Final answer
    x = 14,956.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.