Home / 10,400.16-14,353.20-8,607.36

Finding the Fourth Proportional to 10,400.16, 14,353.20 and 8,607.36

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Solution

The fourth proportional to 10,400.16, 14,353.20 and 8,607.36 is: 11,878.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,400.16 : 14,353.20 = 8,607.36 : x
  2. Step 2: Convert to fraction form
    10,400.16/14,353.20 = 8,607.36/x
  3. Step 3: Cross multiply
    10,400.16x = 14,353.20 × 8,607.36
  4. Step 4: Simplify right side
    10,400.16x = 123,543,159.55
  5. Step 5: Solve for x
    x = 123,543,159.55/10,400.16
  6. Step 6: Final answer
    x = 11,878.97

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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.