Home / 15,046.90-20,762.15-9,383.43

Finding the Fourth Proportional to 15,046.90, 20,762.15 and 9,383.43

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Solution

The fourth proportional to 15,046.90, 20,762.15 and 9,383.43 is: 12,947.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,046.90 : 20,762.15 = 9,383.43 : x
  2. Step 2: Convert to fraction form
    15,046.90/20,762.15 = 9,383.43/x
  3. Step 3: Cross multiply
    15,046.90x = 20,762.15 × 9,383.43
  4. Step 4: Simplify right side
    15,046.90x = 194,820,077.92
  5. Step 5: Solve for x
    x = 194,820,077.92/15,046.90
  6. Step 6: Final answer
    x = 12,947.52

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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.