Home / 10,687.64-14,733.78-9,434.84

Finding the Fourth Proportional to 10,687.64, 14,733.78 and 9,434.84

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Solution

The fourth proportional to 10,687.64, 14,733.78 and 9,434.84 is: 13,006.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,687.64 : 14,733.78 = 9,434.84 : x
  2. Step 2: Convert to fraction form
    10,687.64/14,733.78 = 9,434.84/x
  3. Step 3: Cross multiply
    10,687.64x = 14,733.78 × 9,434.84
  4. Step 4: Simplify right side
    10,687.64x = 139,010,856.90
  5. Step 5: Solve for x
    x = 139,010,856.90/10,687.64
  6. Step 6: Final answer
    x = 13,006.69

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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.