Home / 10,281.80-15,426.30-4,440.20

Finding the Fourth Proportional to 10,281.80, 15,426.30 and 4,440.20

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Solution

The fourth proportional to 10,281.80, 15,426.30 and 4,440.20 is: 6,661.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,281.80 : 15,426.30 = 4,440.20 : x
  2. Step 2: Convert to fraction form
    10,281.80/15,426.30 = 4,440.20/x
  3. Step 3: Cross multiply
    10,281.80x = 15,426.30 × 4,440.20
  4. Step 4: Simplify right side
    10,281.80x = 68,495,857.26
  5. Step 5: Solve for x
    x = 68,495,857.26/10,281.80
  6. Step 6: Final answer
    x = 6,661.85

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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.