Home / 13,925.52-19,218.20-7,958.07

Finding the Fourth Proportional to 13,925.52, 19,218.20 and 7,958.07

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Solution

The fourth proportional to 13,925.52, 19,218.20 and 7,958.07 is: 10,982.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,925.52 : 19,218.20 = 7,958.07 : x
  2. Step 2: Convert to fraction form
    13,925.52/19,218.20 = 7,958.07/x
  3. Step 3: Cross multiply
    13,925.52x = 19,218.20 × 7,958.07
  4. Step 4: Simplify right side
    13,925.52x = 152,939,741.08
  5. Step 5: Solve for x
    x = 152,939,741.08/13,925.52
  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.