Home / 11,701.52-16,148.13-6,985.70

Finding the Fourth Proportional to 11,701.52, 16,148.13 and 6,985.70

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Solution

The fourth proportional to 11,701.52, 16,148.13 and 6,985.70 is: 9,640.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,701.52 : 16,148.13 = 6,985.70 : x
  2. Step 2: Convert to fraction form
    11,701.52/16,148.13 = 6,985.70/x
  3. Step 3: Cross multiply
    11,701.52x = 16,148.13 × 6,985.70
  4. Step 4: Simplify right side
    11,701.52x = 112,805,991.74
  5. Step 5: Solve for x
    x = 112,805,991.74/11,701.52
  6. Step 6: Final answer
    x = 9,640.29

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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.