Home / 13,592.47-18,728.85-12,657.46

Finding the Fourth Proportional to 13,592.47, 18,728.85 and 12,657.46

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Solution

The fourth proportional to 13,592.47, 18,728.85 and 12,657.46 is: 17,440.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,592.47 : 18,728.85 = 12,657.46 : x
  2. Step 2: Convert to fraction form
    13,592.47/18,728.85 = 12,657.46/x
  3. Step 3: Cross multiply
    13,592.47x = 18,728.85 × 12,657.46
  4. Step 4: Simplify right side
    13,592.47x = 237,059,669.72
  5. Step 5: Solve for x
    x = 237,059,669.72/13,592.47
  6. Step 6: Final answer
    x = 17,440.51

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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.