Home / 13,925.92-19,217.50-7,876.05

Finding the Fourth Proportional to 13,925.92, 19,217.50 and 7,876.05

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Solution

The fourth proportional to 13,925.92, 19,217.50 and 7,876.05 is: 10,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,925.92 : 19,217.50 = 7,876.05 : x
  2. Step 2: Convert to fraction form
    13,925.92/19,217.50 = 7,876.05/x
  3. Step 3: Cross multiply
    13,925.92x = 19,217.50 × 7,876.05
  4. Step 4: Simplify right side
    13,925.92x = 151,357,990.88
  5. Step 5: Solve for x
    x = 151,357,990.88/13,925.92
  6. Step 6: Final answer
    x = 10,868.80

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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.