Home / 18,657.12-25,748.28-10,275.12

Finding the Fourth Proportional to 18,657.12, 25,748.28 and 10,275.12

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Solution

The fourth proportional to 18,657.12, 25,748.28 and 10,275.12 is: 14,180.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,657.12 : 25,748.28 = 10,275.12 : x
  2. Step 2: Convert to fraction form
    18,657.12/25,748.28 = 10,275.12/x
  3. Step 3: Cross multiply
    18,657.12x = 25,748.28 × 10,275.12
  4. Step 4: Simplify right side
    18,657.12x = 264,566,666.79
  5. Step 5: Solve for x
    x = 264,566,666.79/18,657.12
  6. Step 6: Final answer
    x = 14,180.47

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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.