Home / 18,377.65-25,359.51-12,417.31

Finding the Fourth Proportional to 18,377.65, 25,359.51 and 12,417.31

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Solution

The fourth proportional to 18,377.65, 25,359.51 and 12,417.31 is: 17,134.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,377.65 : 25,359.51 = 12,417.31 : x
  2. Step 2: Convert to fraction form
    18,377.65/25,359.51 = 12,417.31/x
  3. Step 3: Cross multiply
    18,377.65x = 25,359.51 × 12,417.31
  4. Step 4: Simplify right side
    18,377.65x = 314,896,897.12
  5. Step 5: Solve for x
    x = 314,896,897.12/18,377.65
  6. Step 6: Final answer
    x = 17,134.77

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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.