Home / 10,018.92-13,817.34-6,478.68

Finding the Fourth Proportional to 10,018.92, 13,817.34 and 6,478.68

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Solution

The fourth proportional to 10,018.92, 13,817.34 and 6,478.68 is: 8,934.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,018.92 : 13,817.34 = 6,478.68 : x
  2. Step 2: Convert to fraction form
    10,018.92/13,817.34 = 6,478.68/x
  3. Step 3: Cross multiply
    10,018.92x = 13,817.34 × 6,478.68
  4. Step 4: Simplify right side
    10,018.92x = 89,518,124.31
  5. Step 5: Solve for x
    x = 89,518,124.31/10,018.92
  6. Step 6: Final answer
    x = 8,934.91

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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.