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Finding the Fourth Proportional to 8,552.50, 11,801.01 and 5,715.31

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Solution

The fourth proportional to 8,552.50, 11,801.01 and 5,715.31 is: 7,886.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,552.50 : 11,801.01 = 5,715.31 : x
  2. Step 2: Convert to fraction form
    8,552.50/11,801.01 = 5,715.31/x
  3. Step 3: Cross multiply
    8,552.50x = 11,801.01 × 5,715.31
  4. Step 4: Simplify right side
    8,552.50x = 67,446,430.46
  5. Step 5: Solve for x
    x = 67,446,430.46/8,552.50
  6. Step 6: Final answer
    x = 7,886.17

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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.