Home / 9,938.16-13,711.24-7,105.84

Finding the Fourth Proportional to 9,938.16, 13,711.24 and 7,105.84

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Solution

The fourth proportional to 9,938.16, 13,711.24 and 7,105.84 is: 9,803.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,938.16 : 13,711.24 = 7,105.84 : x
  2. Step 2: Convert to fraction form
    9,938.16/13,711.24 = 7,105.84/x
  3. Step 3: Cross multiply
    9,938.16x = 13,711.24 × 7,105.84
  4. Step 4: Simplify right side
    9,938.16x = 97,429,877.64
  5. Step 5: Solve for x
    x = 97,429,877.64/9,938.16
  6. Step 6: Final answer
    x = 9,803.61

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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.