Home / 12,358.95-18,540.45-4,036.55

Finding the Fourth Proportional to 12,358.95, 18,540.45 and 4,036.55

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Solution

The fourth proportional to 12,358.95, 18,540.45 and 4,036.55 is: 6,055.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,358.95 : 18,540.45 = 4,036.55 : x
  2. Step 2: Convert to fraction form
    12,358.95/18,540.45 = 4,036.55/x
  3. Step 3: Cross multiply
    12,358.95x = 18,540.45 × 4,036.55
  4. Step 4: Simplify right side
    12,358.95x = 74,839,433.26
  5. Step 5: Solve for x
    x = 74,839,433.26/12,358.95
  6. Step 6: Final answer
    x = 6,055.48

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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.