Home / 14,077.68-19,427.40-7,789.92

Finding the Fourth Proportional to 14,077.68, 19,427.40 and 7,789.92

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Solution

The fourth proportional to 14,077.68, 19,427.40 and 7,789.92 is: 10,750.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,077.68 : 19,427.40 = 7,789.92 : x
  2. Step 2: Convert to fraction form
    14,077.68/19,427.40 = 7,789.92/x
  3. Step 3: Cross multiply
    14,077.68x = 19,427.40 × 7,789.92
  4. Step 4: Simplify right side
    14,077.68x = 151,337,891.81
  5. Step 5: Solve for x
    x = 151,337,891.81/14,077.68
  6. Step 6: Final answer
    x = 10,750.20

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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.