Home / 10,218.78-15,328.17-6,923.70

Finding the Fourth Proportional to 10,218.78, 15,328.17 and 6,923.70

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Solution

The fourth proportional to 10,218.78, 15,328.17 and 6,923.70 is: 10,385.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,218.78 : 15,328.17 = 6,923.70 : x
  2. Step 2: Convert to fraction form
    10,218.78/15,328.17 = 6,923.70/x
  3. Step 3: Cross multiply
    10,218.78x = 15,328.17 × 6,923.70
  4. Step 4: Simplify right side
    10,218.78x = 106,127,650.63
  5. Step 5: Solve for x
    x = 106,127,650.63/10,218.78
  6. Step 6: Final answer
    x = 10,385.55

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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.