Home / 8,425.19-12,639.12-2,803.06

Finding the Fourth Proportional to 8,425.19, 12,639.12 and 2,803.06

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Solution

The fourth proportional to 8,425.19, 12,639.12 and 2,803.06 is: 4,205.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,425.19 : 12,639.12 = 2,803.06 : x
  2. Step 2: Convert to fraction form
    8,425.19/12,639.12 = 2,803.06/x
  3. Step 3: Cross multiply
    8,425.19x = 12,639.12 × 2,803.06
  4. Step 4: Simplify right side
    8,425.19x = 35,428,211.71
  5. Step 5: Solve for x
    x = 35,428,211.71/8,425.19
  6. Step 6: Final answer
    x = 4,205.03

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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.