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Finding the Fourth Proportional to 10,988.28, 15,163.83 and 6,020.28

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Solution

The fourth proportional to 10,988.28, 15,163.83 and 6,020.28 is: 8,307.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,988.28 : 15,163.83 = 6,020.28 : x
  2. Step 2: Convert to fraction form
    10,988.28/15,163.83 = 6,020.28/x
  3. Step 3: Cross multiply
    10,988.28x = 15,163.83 × 6,020.28
  4. Step 4: Simplify right side
    10,988.28x = 91,290,502.47
  5. Step 5: Solve for x
    x = 91,290,502.47/10,988.28
  6. Step 6: Final answer
    x = 8,307.99

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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.