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Finding the Fourth Proportional to 10,551.60, 14,567.04 and 7,020

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Solution

The fourth proportional to 10,551.60, 14,567.04 and 7,020 is: 9,691.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,551.60 : 14,567.04 = 7,020 : x
  2. Step 2: Convert to fraction form
    10,551.60/14,567.04 = 7,020/x
  3. Step 3: Cross multiply
    10,551.60x = 14,567.04 × 7,020
  4. Step 4: Simplify right side
    10,551.60x = 102,260,620.80
  5. Step 5: Solve for x
    x = 102,260,620.80/10,551.60
  6. Step 6: Final answer
    x = 9,691.48

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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.