Home / 6,987.42-10,474.65-3,697.74

Finding the Fourth Proportional to 6,987.42, 10,474.65 and 3,697.74

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Solution

The fourth proportional to 6,987.42, 10,474.65 and 3,697.74 is: 5,543.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,987.42 : 10,474.65 = 3,697.74 : x
  2. Step 2: Convert to fraction form
    6,987.42/10,474.65 = 3,697.74/x
  3. Step 3: Cross multiply
    6,987.42x = 10,474.65 × 3,697.74
  4. Step 4: Simplify right side
    6,987.42x = 38,732,532.29
  5. Step 5: Solve for x
    x = 38,732,532.29/6,987.42
  6. Step 6: Final answer
    x = 5,543.18

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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.