Home / 9,686.12-14,530.70-4,139.50

Finding the Fourth Proportional to 9,686.12, 14,530.70 and 4,139.50

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Solution

The fourth proportional to 9,686.12, 14,530.70 and 4,139.50 is: 6,209.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,686.12 : 14,530.70 = 4,139.50 : x
  2. Step 2: Convert to fraction form
    9,686.12/14,530.70 = 4,139.50/x
  3. Step 3: Cross multiply
    9,686.12x = 14,530.70 × 4,139.50
  4. Step 4: Simplify right side
    9,686.12x = 60,149,832.65
  5. Step 5: Solve for x
    x = 60,149,832.65/9,686.12
  6. Step 6: Final answer
    x = 6,209.90

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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.