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Finding the Fourth Proportional to 15,113,792, 20,856,723 and 8,238,213.92

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Solution

The fourth proportional to 15,113,792, 20,856,723 and 8,238,213.92 is: 11,368,566.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,113,792 : 20,856,723 = 8,238,213.92 : x
  2. Step 2: Convert to fraction form
    15,113,792/20,856,723 = 8,238,213.92/x
  3. Step 3: Cross multiply
    15,113,792x = 20,856,723 × 8,238,213.92
  4. Step 4: Simplify right side
    15,113,792x = 171,822,145,744,184.16
  5. Step 5: Solve for x
    x = 171,822,145,744,184.16/15,113,792
  6. Step 6: Final answer
    x = 11,368,566.26

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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.