Home / 15,423.18-21,283.96-8,349.60

Finding the Fourth Proportional to 15,423.18, 21,283.96 and 8,349.60

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Solution

The fourth proportional to 15,423.18, 21,283.96 and 8,349.60 is: 11,522.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,423.18 : 21,283.96 = 8,349.60 : x
  2. Step 2: Convert to fraction form
    15,423.18/21,283.96 = 8,349.60/x
  3. Step 3: Cross multiply
    15,423.18x = 21,283.96 × 8,349.60
  4. Step 4: Simplify right side
    15,423.18x = 177,712,552.42
  5. Step 5: Solve for x
    x = 177,712,552.42/15,423.18
  6. Step 6: Final answer
    x = 11,522.43

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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.