Home / 18,240.86-27,345.05-7,155.46

Finding the Fourth Proportional to 18,240.86, 27,345.05 and 7,155.46

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Solution

The fourth proportional to 18,240.86, 27,345.05 and 7,155.46 is: 10,726.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,240.86 : 27,345.05 = 7,155.46 : x
  2. Step 2: Convert to fraction form
    18,240.86/27,345.05 = 7,155.46/x
  3. Step 3: Cross multiply
    18,240.86x = 27,345.05 × 7,155.46
  4. Step 4: Simplify right side
    18,240.86x = 195,666,411.47
  5. Step 5: Solve for x
    x = 195,666,411.47/18,240.86
  6. Step 6: Final answer
    x = 10,726.82

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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.