Home / 12,345.23-18,519.77-4,023.31

Finding the Fourth Proportional to 12,345.23, 18,519.77 and 4,023.31

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Solution

The fourth proportional to 12,345.23, 18,519.77 and 4,023.31 is: 6,035.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,345.23 : 18,519.77 = 4,023.31 : x
  2. Step 2: Convert to fraction form
    12,345.23/18,519.77 = 4,023.31/x
  3. Step 3: Cross multiply
    12,345.23x = 18,519.77 × 4,023.31
  4. Step 4: Simplify right side
    12,345.23x = 74,510,663.12
  5. Step 5: Solve for x
    x = 74,510,663.12/12,345.23
  6. Step 6: Final answer
    x = 6,035.59

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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.