Home / 7,015.68-10,519.20-6,350.40

Finding the Fourth Proportional to 7,015.68, 10,519.20 and 6,350.40

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Solution

The fourth proportional to 7,015.68, 10,519.20 and 6,350.40 is: 9,521.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,015.68 : 10,519.20 = 6,350.40 : x
  2. Step 2: Convert to fraction form
    7,015.68/10,519.20 = 6,350.40/x
  3. Step 3: Cross multiply
    7,015.68x = 10,519.20 × 6,350.40
  4. Step 4: Simplify right side
    7,015.68x = 66,801,127.68
  5. Step 5: Solve for x
    x = 66,801,127.68/7,015.68
  6. Step 6: Final answer
    x = 9,521.69

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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.