Home / 18,386.52-25,371.18-10,428.36

Finding the Fourth Proportional to 18,386.52, 25,371.18 and 10,428.36

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Solution

The fourth proportional to 18,386.52, 25,371.18 and 10,428.36 is: 14,389.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,386.52 : 25,371.18 = 10,428.36 : x
  2. Step 2: Convert to fraction form
    18,386.52/25,371.18 = 10,428.36/x
  3. Step 3: Cross multiply
    18,386.52x = 25,371.18 × 10,428.36
  4. Step 4: Simplify right side
    18,386.52x = 264,579,798.66
  5. Step 5: Solve for x
    x = 264,579,798.66/18,386.52
  6. Step 6: Final answer
    x = 14,389.88

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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.