Home / 18,384.47-25,371.59-10,426.86

Finding the Fourth Proportional to 18,384.47, 25,371.59 and 10,426.86

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Solution

The fourth proportional to 18,384.47, 25,371.59 and 10,426.86 is: 14,389.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,384.47 : 25,371.59 = 10,426.86 : x
  2. Step 2: Convert to fraction form
    18,384.47/25,371.59 = 10,426.86/x
  3. Step 3: Cross multiply
    18,384.47x = 25,371.59 × 10,426.86
  4. Step 4: Simplify right side
    18,384.47x = 264,546,145.12
  5. Step 5: Solve for x
    x = 264,546,145.12/18,384.47
  6. Step 6: Final answer
    x = 14,389.65

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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.