Home / 15,398.24-21,244.74-9,423.68

Finding the Fourth Proportional to 15,398.24, 21,244.74 and 9,423.68

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Solution

The fourth proportional to 15,398.24, 21,244.74 and 9,423.68 is: 13,001.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,398.24 : 21,244.74 = 9,423.68 : x
  2. Step 2: Convert to fraction form
    15,398.24/21,244.74 = 9,423.68/x
  3. Step 3: Cross multiply
    15,398.24x = 21,244.74 × 9,423.68
  4. Step 4: Simplify right side
    15,398.24x = 200,203,631.44
  5. Step 5: Solve for x
    x = 200,203,631.44/15,398.24
  6. Step 6: Final answer
    x = 13,001.72

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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.