Home / 18,397.64-25,387.84-10,439.68

Finding the Fourth Proportional to 18,397.64, 25,387.84 and 10,439.68

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Solution

The fourth proportional to 18,397.64, 25,387.84 and 10,439.68 is: 14,406.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,397.64 : 25,387.84 = 10,439.68 : x
  2. Step 2: Convert to fraction form
    18,397.64/25,387.84 = 10,439.68/x
  3. Step 3: Cross multiply
    18,397.64x = 25,387.84 × 10,439.68
  4. Step 4: Simplify right side
    18,397.64x = 265,040,925.49
  5. Step 5: Solve for x
    x = 265,040,925.49/18,397.64
  6. Step 6: Final answer
    x = 14,406.25

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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.