Home / 10,313.97-14,242.77-9,761.55

Finding the Fourth Proportional to 10,313.97, 14,242.77 and 9,761.55

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Solution

The fourth proportional to 10,313.97, 14,242.77 and 9,761.55 is: 13,479.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,313.97 : 14,242.77 = 9,761.55 : x
  2. Step 2: Convert to fraction form
    10,313.97/14,242.77 = 9,761.55/x
  3. Step 3: Cross multiply
    10,313.97x = 14,242.77 × 9,761.55
  4. Step 4: Simplify right side
    10,313.97x = 139,031,511.49
  5. Step 5: Solve for x
    x = 139,031,511.49/10,313.97
  6. Step 6: Final answer
    x = 13,479.92

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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.