Home / 12,345.66-18,520.42-4,023.74

Finding the Fourth Proportional to 12,345.66, 18,520.42 and 4,023.74

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Solution

The fourth proportional to 12,345.66, 18,520.42 and 4,023.74 is: 6,036.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,345.66 : 18,520.42 = 4,023.74 : x
  2. Step 2: Convert to fraction form
    12,345.66/18,520.42 = 4,023.74/x
  3. Step 3: Cross multiply
    12,345.66x = 18,520.42 × 4,023.74
  4. Step 4: Simplify right side
    12,345.66x = 74,521,354.77
  5. Step 5: Solve for x
    x = 74,521,354.77/12,345.66
  6. Step 6: Final answer
    x = 6,036.24

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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.