Home / 15,496.68-21,385.56-8,423.16

Finding the Fourth Proportional to 15,496.68, 21,385.56 and 8,423.16

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Solution

The fourth proportional to 15,496.68, 21,385.56 and 8,423.16 is: 11,624.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,496.68 : 21,385.56 = 8,423.16 : x
  2. Step 2: Convert to fraction form
    15,496.68/21,385.56 = 8,423.16/x
  3. Step 3: Cross multiply
    15,496.68x = 21,385.56 × 8,423.16
  4. Step 4: Simplify right side
    15,496.68x = 180,133,993.57
  5. Step 5: Solve for x
    x = 180,133,993.57/15,496.68
  6. Step 6: Final answer
    x = 11,624.04

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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.