Home / 6,928.20-10,397.16-6,315.84

Finding the Fourth Proportional to 6,928.20, 10,397.16 and 6,315.84

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Solution

The fourth proportional to 6,928.20, 10,397.16 and 6,315.84 is: 9,478.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,928.20 : 10,397.16 = 6,315.84 : x
  2. Step 2: Convert to fraction form
    6,928.20/10,397.16 = 6,315.84/x
  3. Step 3: Cross multiply
    6,928.20x = 10,397.16 × 6,315.84
  4. Step 4: Simplify right side
    6,928.20x = 65,666,799.01
  5. Step 5: Solve for x
    x = 65,666,799.01/6,928.20
  6. Step 6: Final answer
    x = 9,478.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.