Home / 15,612.18-21,545.26-8,538.98

Finding the Fourth Proportional to 15,612.18, 21,545.26 and 8,538.98

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Solution

The fourth proportional to 15,612.18, 21,545.26 and 8,538.98 is: 11,784.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,612.18 : 21,545.26 = 8,538.98 : x
  2. Step 2: Convert to fraction form
    15,612.18/21,545.26 = 8,538.98/x
  3. Step 3: Cross multiply
    15,612.18x = 21,545.26 × 8,538.98
  4. Step 4: Simplify right side
    15,612.18x = 183,974,544.23
  5. Step 5: Solve for x
    x = 183,974,544.23/15,612.18
  6. Step 6: Final answer
    x = 11,784.04

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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.