Home / 12,449.79-18,675.23-4,130.55

Finding the Fourth Proportional to 12,449.79, 18,675.23 and 4,130.55

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Solution

The fourth proportional to 12,449.79, 18,675.23 and 4,130.55 is: 6,196.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,449.79 : 18,675.23 = 4,130.55 : x
  2. Step 2: Convert to fraction form
    12,449.79/18,675.23 = 4,130.55/x
  3. Step 3: Cross multiply
    12,449.79x = 18,675.23 × 4,130.55
  4. Step 4: Simplify right side
    12,449.79x = 77,138,950.62
  5. Step 5: Solve for x
    x = 77,138,950.62/12,449.79
  6. Step 6: Final answer
    x = 6,196.00

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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.