Home / 15,348.70-23,010.90-8,423.20

Finding the Fourth Proportional to 15,348.70, 23,010.90 and 8,423.20

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Solution

The fourth proportional to 15,348.70, 23,010.90 and 8,423.20 is: 12,628.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,348.70 : 23,010.90 = 8,423.20 : x
  2. Step 2: Convert to fraction form
    15,348.70/23,010.90 = 8,423.20/x
  3. Step 3: Cross multiply
    15,348.70x = 23,010.90 × 8,423.20
  4. Step 4: Simplify right side
    15,348.70x = 193,825,412.88
  5. Step 5: Solve for x
    x = 193,825,412.88/15,348.70
  6. Step 6: Final answer
    x = 12,628.13

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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.