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Finding the Fourth Proportional to 10,897.00, 15,009.21 and 8,374.28

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Solution

The fourth proportional to 10,897.00, 15,009.21 and 8,374.28 is: 11,534.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,897.00 : 15,009.21 = 8,374.28 : x
  2. Step 2: Convert to fraction form
    10,897.00/15,009.21 = 8,374.28/x
  3. Step 3: Cross multiply
    10,897.00x = 15,009.21 × 8,374.28
  4. Step 4: Simplify right side
    10,897.00x = 125,691,306.06
  5. Step 5: Solve for x
    x = 125,691,306.06/10,897.00
  6. Step 6: Final answer
    x = 11,534.49

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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.