Home / 18,726.04-25,854.93-15,156.88

Finding the Fourth Proportional to 18,726.04, 25,854.93 and 15,156.88

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Solution

The fourth proportional to 18,726.04, 25,854.93 and 15,156.88 is: 20,927.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,726.04 : 25,854.93 = 15,156.88 : x
  2. Step 2: Convert to fraction form
    18,726.04/25,854.93 = 15,156.88/x
  3. Step 3: Cross multiply
    18,726.04x = 25,854.93 × 15,156.88
  4. Step 4: Simplify right side
    18,726.04x = 391,879,942.14
  5. Step 5: Solve for x
    x = 391,879,942.14/18,726.04
  6. Step 6: Final answer
    x = 20,927.01

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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.