Home / 10,385.72-14,332.36-5,670.12

Finding the Fourth Proportional to 10,385.72, 14,332.36 and 5,670.12

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Solution

The fourth proportional to 10,385.72, 14,332.36 and 5,670.12 is: 7,824.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,385.72 : 14,332.36 = 5,670.12 : x
  2. Step 2: Convert to fraction form
    10,385.72/14,332.36 = 5,670.12/x
  3. Step 3: Cross multiply
    10,385.72x = 14,332.36 × 5,670.12
  4. Step 4: Simplify right side
    10,385.72x = 81,266,201.08
  5. Step 5: Solve for x
    x = 81,266,201.08/10,385.72
  6. Step 6: Final answer
    x = 7,824.80

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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.