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Finding the Fourth Proportional to 15,088.56, 20,822.35 and 9,124.22

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Solution

The fourth proportional to 15,088.56, 20,822.35 and 9,124.22 is: 12,591.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,088.56 : 20,822.35 = 9,124.22 : x
  2. Step 2: Convert to fraction form
    15,088.56/20,822.35 = 9,124.22/x
  3. Step 3: Cross multiply
    15,088.56x = 20,822.35 × 9,124.22
  4. Step 4: Simplify right side
    15,088.56x = 189,987,598.21
  5. Step 5: Solve for x
    x = 189,987,598.21/15,088.56
  6. Step 6: Final answer
    x = 12,591.50

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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.