Home / 13,062.74-18,029.45-8,586.90

Finding the Fourth Proportional to 13,062.74, 18,029.45 and 8,586.90

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Solution

The fourth proportional to 13,062.74, 18,029.45 and 8,586.90 is: 11,851.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,062.74 : 18,029.45 = 8,586.90 : x
  2. Step 2: Convert to fraction form
    13,062.74/18,029.45 = 8,586.90/x
  3. Step 3: Cross multiply
    13,062.74x = 18,029.45 × 8,586.90
  4. Step 4: Simplify right side
    13,062.74x = 154,817,105.67
  5. Step 5: Solve for x
    x = 154,817,105.67/13,062.74
  6. Step 6: Final answer
    x = 11,851.81

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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.