Home / 12,819.45-17,683.20-9,470.91

Finding the Fourth Proportional to 12,819.45, 17,683.20 and 9,470.91

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Solution

The fourth proportional to 12,819.45, 17,683.20 and 9,470.91 is: 13,064.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,819.45 : 17,683.20 = 9,470.91 : x
  2. Step 2: Convert to fraction form
    12,819.45/17,683.20 = 9,470.91/x
  3. Step 3: Cross multiply
    12,819.45x = 17,683.20 × 9,470.91
  4. Step 4: Simplify right side
    12,819.45x = 167,475,995.71
  5. Step 5: Solve for x
    x = 167,475,995.71/12,819.45
  6. Step 6: Final answer
    x = 13,064.21

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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.