Home / 14,040.60-19,377.81-8,071.71

Finding the Fourth Proportional to 14,040.60, 19,377.81 and 8,071.71

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Solution

The fourth proportional to 14,040.60, 19,377.81 and 8,071.71 is: 11,139.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,040.60 : 19,377.81 = 8,071.71 : x
  2. Step 2: Convert to fraction form
    14,040.60/19,377.81 = 8,071.71/x
  3. Step 3: Cross multiply
    14,040.60x = 19,377.81 × 8,071.71
  4. Step 4: Simplify right side
    14,040.60x = 156,412,062.76
  5. Step 5: Solve for x
    x = 156,412,062.76/14,040.60
  6. Step 6: Final answer
    x = 11,139.98

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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.