Home / 9,988.11-14,988.06-5,776.70

Finding the Fourth Proportional to 9,988.11, 14,988.06 and 5,776.70

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Solution

The fourth proportional to 9,988.11, 14,988.06 and 5,776.70 is: 8,668.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988.11 : 14,988.06 = 5,776.70 : x
  2. Step 2: Convert to fraction form
    9,988.11/14,988.06 = 5,776.70/x
  3. Step 3: Cross multiply
    9,988.11x = 14,988.06 × 5,776.70
  4. Step 4: Simplify right side
    9,988.11x = 86,581,451.26
  5. Step 5: Solve for x
    x = 86,581,451.26/9,988.11
  6. Step 6: Final answer
    x = 8,668.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.