Home / 6,750.20-10,125.30-6,145.40

Finding the Fourth Proportional to 6,750.20, 10,125.30 and 6,145.40

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Solution

The fourth proportional to 6,750.20, 10,125.30 and 6,145.40 is: 9,218.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,750.20 : 10,125.30 = 6,145.40 : x
  2. Step 2: Convert to fraction form
    6,750.20/10,125.30 = 6,145.40/x
  3. Step 3: Cross multiply
    6,750.20x = 10,125.30 × 6,145.40
  4. Step 4: Simplify right side
    6,750.20x = 62,224,018.62
  5. Step 5: Solve for x
    x = 62,224,018.62/6,750.20
  6. Step 6: Final answer
    x = 9,218.10

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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.