Home / 11,679.07-16,117.10-7,487.32

Finding the Fourth Proportional to 11,679.07, 16,117.10 and 7,487.32

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Solution

The fourth proportional to 11,679.07, 16,117.10 and 7,487.32 is: 10,332.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,679.07 : 16,117.10 = 7,487.32 : x
  2. Step 2: Convert to fraction form
    11,679.07/16,117.10 = 7,487.32/x
  3. Step 3: Cross multiply
    11,679.07x = 16,117.10 × 7,487.32
  4. Step 4: Simplify right side
    11,679.07x = 120,673,885.17
  5. Step 5: Solve for x
    x = 120,673,885.17/11,679.07
  6. Step 6: Final answer
    x = 10,332.49

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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.