Home / 15,496.85-21,385.81-8,423.27

Finding the Fourth Proportional to 15,496.85, 21,385.81 and 8,423.27

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Solution

The fourth proportional to 15,496.85, 21,385.81 and 8,423.27 is: 11,624.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,496.85 : 21,385.81 = 8,423.27 : x
  2. Step 2: Convert to fraction form
    15,496.85/21,385.81 = 8,423.27/x
  3. Step 3: Cross multiply
    15,496.85x = 21,385.81 × 8,423.27
  4. Step 4: Simplify right side
    15,496.85x = 180,138,356.22
  5. Step 5: Solve for x
    x = 180,138,356.22/15,496.85
  6. Step 6: Final answer
    x = 11,624.19

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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.