Home / 10,866.40-16,321.48-10,560.16

Finding the Fourth Proportional to 10,866.40, 16,321.48 and 10,560.16

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Solution

The fourth proportional to 10,866.40, 16,321.48 and 10,560.16 is: 15,861.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,866.40 : 16,321.48 = 10,560.16 : x
  2. Step 2: Convert to fraction form
    10,866.40/16,321.48 = 10,560.16/x
  3. Step 3: Cross multiply
    10,866.40x = 16,321.48 × 10,560.16
  4. Step 4: Simplify right side
    10,866.40x = 172,357,440.24
  5. Step 5: Solve for x
    x = 172,357,440.24/10,866.40
  6. Step 6: Final answer
    x = 15,861.50

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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.