Home / 10,985.20-16,502.10-10,693.60

Finding the Fourth Proportional to 10,985.20, 16,502.10 and 10,693.60

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Solution

The fourth proportional to 10,985.20, 16,502.10 and 10,693.60 is: 16,064.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.20 : 16,502.10 = 10,693.60 : x
  2. Step 2: Convert to fraction form
    10,985.20/16,502.10 = 10,693.60/x
  3. Step 3: Cross multiply
    10,985.20x = 16,502.10 × 10,693.60
  4. Step 4: Simplify right side
    10,985.20x = 176,466,856.56
  5. Step 5: Solve for x
    x = 176,466,856.56/10,985.20
  6. Step 6: Final answer
    x = 16,064.05

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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.