Home / 13,925.68-19,217.82-7,958.32

Finding the Fourth Proportional to 13,925.68, 19,217.82 and 7,958.32

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Solution

The fourth proportional to 13,925.68, 19,217.82 and 7,958.32 is: 10,982.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,925.68 : 19,217.82 = 7,958.32 : x
  2. Step 2: Convert to fraction form
    13,925.68/19,217.82 = 7,958.32/x
  3. Step 3: Cross multiply
    13,925.68x = 19,217.82 × 7,958.32
  4. Step 4: Simplify right side
    13,925.68x = 152,941,561.26
  5. Step 5: Solve for x
    x = 152,941,561.26/13,925.68
  6. Step 6: Final answer
    x = 10,982.70

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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.