Home / 15,423.53-23,121.45-5,555.91

Finding the Fourth Proportional to 15,423.53, 23,121.45 and 5,555.91

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Solution

The fourth proportional to 15,423.53, 23,121.45 and 5,555.91 is: 8,328.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,423.53 : 23,121.45 = 5,555.91 : x
  2. Step 2: Convert to fraction form
    15,423.53/23,121.45 = 5,555.91/x
  3. Step 3: Cross multiply
    15,423.53x = 23,121.45 × 5,555.91
  4. Step 4: Simplify right side
    15,423.53x = 128,460,695.27
  5. Step 5: Solve for x
    x = 128,460,695.27/15,423.53
  6. Step 6: Final answer
    x = 8,328.88

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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.