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Finding the Fourth Proportional to 10,875.70, 16,313.55 and 5,031.55

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Solution

The fourth proportional to 10,875.70, 16,313.55 and 5,031.55 is: 7,547.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,875.70 : 16,313.55 = 5,031.55 : x
  2. Step 2: Convert to fraction form
    10,875.70/16,313.55 = 5,031.55/x
  3. Step 3: Cross multiply
    10,875.70x = 16,313.55 × 5,031.55
  4. Step 4: Simplify right side
    10,875.70x = 82,082,335.78
  5. Step 5: Solve for x
    x = 82,082,335.78/10,875.70
  6. Step 6: Final answer
    x = 7,547.32

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