Home / 7,276.20-10,899.90-4,345.80

Finding the Fourth Proportional to 7,276.20, 10,899.90 and 4,345.80

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Solution

The fourth proportional to 7,276.20, 10,899.90 and 4,345.80 is: 6,510.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,276.20 : 10,899.90 = 4,345.80 : x
  2. Step 2: Convert to fraction form
    7,276.20/10,899.90 = 4,345.80/x
  3. Step 3: Cross multiply
    7,276.20x = 10,899.90 × 4,345.80
  4. Step 4: Simplify right side
    7,276.20x = 47,368,785.42
  5. Step 5: Solve for x
    x = 47,368,785.42/7,276.20
  6. Step 6: Final answer
    x = 6,510.10

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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.