Home / 12,358.80-18,535.84-4,039.76

Finding the Fourth Proportional to 12,358.80, 18,535.84 and 4,039.76

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Solution

The fourth proportional to 12,358.80, 18,535.84 and 4,039.76 is: 6,058.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,358.80 : 18,535.84 = 4,039.76 : x
  2. Step 2: Convert to fraction form
    12,358.80/18,535.84 = 4,039.76/x
  3. Step 3: Cross multiply
    12,358.80x = 18,535.84 × 4,039.76
  4. Step 4: Simplify right side
    12,358.80x = 74,880,345.00
  5. Step 5: Solve for x
    x = 74,880,345.00/12,358.80
  6. Step 6: Final answer
    x = 6,058.87

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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.