Home / 10,385.36-14,331.62-5,909.02

Finding the Fourth Proportional to 10,385.36, 14,331.62 and 5,909.02

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Solution

The fourth proportional to 10,385.36, 14,331.62 and 5,909.02 is: 8,154.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,385.36 : 14,331.62 = 5,909.02 : x
  2. Step 2: Convert to fraction form
    10,385.36/14,331.62 = 5,909.02/x
  3. Step 3: Cross multiply
    10,385.36x = 14,331.62 × 5,909.02
  4. Step 4: Simplify right side
    10,385.36x = 84,685,799.67
  5. Step 5: Solve for x
    x = 84,685,799.67/10,385.36
  6. Step 6: Final answer
    x = 8,154.34

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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.