Home / 11,423.40-17,124.30-8,923.20

Finding the Fourth Proportional to 11,423.40, 17,124.30 and 8,923.20

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Solution

The fourth proportional to 11,423.40, 17,124.30 and 8,923.20 is: 13,376.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,423.40 : 17,124.30 = 8,923.20 : x
  2. Step 2: Convert to fraction form
    11,423.40/17,124.30 = 8,923.20/x
  3. Step 3: Cross multiply
    11,423.40x = 17,124.30 × 8,923.20
  4. Step 4: Simplify right side
    11,423.40x = 152,803,553.76
  5. Step 5: Solve for x
    x = 152,803,553.76/11,423.40
  6. Step 6: Final answer
    x = 13,376.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.