Home / 12,400.65-18,594.13-6,462.72

Finding the Fourth Proportional to 12,400.65, 18,594.13 and 6,462.72

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Solution

The fourth proportional to 12,400.65, 18,594.13 and 6,462.72 is: 9,690.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,400.65 : 18,594.13 = 6,462.72 : x
  2. Step 2: Convert to fraction form
    12,400.65/18,594.13 = 6,462.72/x
  3. Step 3: Cross multiply
    12,400.65x = 18,594.13 × 6,462.72
  4. Step 4: Simplify right side
    12,400.65x = 120,168,655.83
  5. Step 5: Solve for x
    x = 120,168,655.83/12,400.65
  6. Step 6: Final answer
    x = 9,690.51

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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.