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Finding the Fourth Proportional to 15,501.60, 21,402.77 and 10,404.76

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Solution

The fourth proportional to 15,501.60, 21,402.77 and 10,404.76 is: 14,365.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,501.60 : 21,402.77 = 10,404.76 : x
  2. Step 2: Convert to fraction form
    15,501.60/21,402.77 = 10,404.76/x
  3. Step 3: Cross multiply
    15,501.60x = 21,402.77 × 10,404.76
  4. Step 4: Simplify right side
    15,501.60x = 222,690,526.15
  5. Step 5: Solve for x
    x = 222,690,526.15/15,501.60
  6. Step 6: Final answer
    x = 14,365.65

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.