Home / 15,159.58-22,728.42-6,389.70

Finding the Fourth Proportional to 15,159.58, 22,728.42 and 6,389.70

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Solution

The fourth proportional to 15,159.58, 22,728.42 and 6,389.70 is: 9,579.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,159.58 : 22,728.42 = 6,389.70 : x
  2. Step 2: Convert to fraction form
    15,159.58/22,728.42 = 6,389.70/x
  3. Step 3: Cross multiply
    15,159.58x = 22,728.42 × 6,389.70
  4. Step 4: Simplify right side
    15,159.58x = 145,227,785.27
  5. Step 5: Solve for x
    x = 145,227,785.27/15,159.58
  6. Step 6: Final answer
    x = 9,579.93

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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.