Home / 7,939.86-10,952.01-5,145.18

Finding the Fourth Proportional to 7,939.86, 10,952.01 and 5,145.18

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Solution

The fourth proportional to 7,939.86, 10,952.01 and 5,145.18 is: 7,097.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.86 : 10,952.01 = 5,145.18 : x
  2. Step 2: Convert to fraction form
    7,939.86/10,952.01 = 5,145.18/x
  3. Step 3: Cross multiply
    7,939.86x = 10,952.01 × 5,145.18
  4. Step 4: Simplify right side
    7,939.86x = 56,350,062.81
  5. Step 5: Solve for x
    x = 56,350,062.81/7,939.86
  6. Step 6: Final answer
    x = 7,097.11

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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.