Home / 11,706.13-16,151.20-6,988.69

Finding the Fourth Proportional to 11,706.13, 16,151.20 and 6,988.69

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Solution

The fourth proportional to 11,706.13, 16,151.20 and 6,988.69 is: 9,642.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,706.13 : 16,151.20 = 6,988.69 : x
  2. Step 2: Convert to fraction form
    11,706.13/16,151.20 = 6,988.69/x
  3. Step 3: Cross multiply
    11,706.13x = 16,151.20 × 6,988.69
  4. Step 4: Simplify right side
    11,706.13x = 112,875,729.93
  5. Step 5: Solve for x
    x = 112,875,729.93/11,706.13
  6. Step 6: Final answer
    x = 9,642.45

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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.