Home / 15,497.24-21,385.74-8,423.48

Finding the Fourth Proportional to 15,497.24, 21,385.74 and 8,423.48

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Solution

The fourth proportional to 15,497.24, 21,385.74 and 8,423.48 is: 11,624.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,497.24 : 21,385.74 = 8,423.48 : x
  2. Step 2: Convert to fraction form
    15,497.24/21,385.74 = 8,423.48/x
  3. Step 3: Cross multiply
    15,497.24x = 21,385.74 × 8,423.48
  4. Step 4: Simplify right side
    15,497.24x = 180,142,353.18
  5. Step 5: Solve for x
    x = 180,142,353.18/15,497.24
  6. Step 6: Final answer
    x = 11,624.16

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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.