Home / 18,458.66-27,681.91-10,148.06

Finding the Fourth Proportional to 18,458.66, 27,681.91 and 10,148.06

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Solution

The fourth proportional to 18,458.66, 27,681.91 and 10,148.06 is: 15,218.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,458.66 : 27,681.91 = 10,148.06 : x
  2. Step 2: Convert to fraction form
    18,458.66/27,681.91 = 10,148.06/x
  3. Step 3: Cross multiply
    18,458.66x = 27,681.91 × 10,148.06
  4. Step 4: Simplify right side
    18,458.66x = 280,917,519.81
  5. Step 5: Solve for x
    x = 280,917,519.81/18,458.66
  6. Step 6: Final answer
    x = 15,218.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.