Home / 7,990.68-11,023.65-5,302.56

Finding the Fourth Proportional to 7,990.68, 11,023.65 and 5,302.56

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Solution

The fourth proportional to 7,990.68, 11,023.65 and 5,302.56 is: 7,315.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.68 : 11,023.65 = 5,302.56 : x
  2. Step 2: Convert to fraction form
    7,990.68/11,023.65 = 5,302.56/x
  3. Step 3: Cross multiply
    7,990.68x = 11,023.65 × 5,302.56
  4. Step 4: Simplify right side
    7,990.68x = 58,453,565.54
  5. Step 5: Solve for x
    x = 58,453,565.54/7,990.68
  6. Step 6: Final answer
    x = 7,315.22

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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.