Home / 14,177.82-19,565.10-7,890.60

Finding the Fourth Proportional to 14,177.82, 19,565.10 and 7,890.60

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Solution

The fourth proportional to 14,177.82, 19,565.10 and 7,890.60 is: 10,888.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,177.82 : 19,565.10 = 7,890.60 : x
  2. Step 2: Convert to fraction form
    14,177.82/19,565.10 = 7,890.60/x
  3. Step 3: Cross multiply
    14,177.82x = 19,565.10 × 7,890.60
  4. Step 4: Simplify right side
    14,177.82x = 154,380,378.06
  5. Step 5: Solve for x
    x = 154,380,378.06/14,177.82
  6. Step 6: Final answer
    x = 10,888.87

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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.