Home / 12,345.66-18,520.56-4,023.30

Finding the Fourth Proportional to 12,345.66, 18,520.56 and 4,023.30

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Solution

The fourth proportional to 12,345.66, 18,520.56 and 4,023.30 is: 6,035.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,345.66 : 18,520.56 = 4,023.30 : x
  2. Step 2: Convert to fraction form
    12,345.66/18,520.56 = 4,023.30/x
  3. Step 3: Cross multiply
    12,345.66x = 18,520.56 × 4,023.30
  4. Step 4: Simplify right side
    12,345.66x = 74,513,769.05
  5. Step 5: Solve for x
    x = 74,513,769.05/12,345.66
  6. Step 6: Final answer
    x = 6,035.62

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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.