Home / 9,124.20-13,686.30-3,281.40

Finding the Fourth Proportional to 9,124.20, 13,686.30 and 3,281.40

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Solution

The fourth proportional to 9,124.20, 13,686.30 and 3,281.40 is: 4,922.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,124.20 : 13,686.30 = 3,281.40 : x
  2. Step 2: Convert to fraction form
    9,124.20/13,686.30 = 3,281.40/x
  3. Step 3: Cross multiply
    9,124.20x = 13,686.30 × 3,281.40
  4. Step 4: Simplify right side
    9,124.20x = 44,910,224.82
  5. Step 5: Solve for x
    x = 44,910,224.82/9,124.20
  6. Step 6: Final answer
    x = 4,922.10

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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.