Home / 12,386.18-18,579.90-4,593.17

Finding the Fourth Proportional to 12,386.18, 18,579.90 and 4,593.17

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Solution

The fourth proportional to 12,386.18, 18,579.90 and 4,593.17 is: 6,889.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,386.18 : 18,579.90 = 4,593.17 : x
  2. Step 2: Convert to fraction form
    12,386.18/18,579.90 = 4,593.17/x
  3. Step 3: Cross multiply
    12,386.18x = 18,579.90 × 4,593.17
  4. Step 4: Simplify right side
    12,386.18x = 85,340,639.28
  5. Step 5: Solve for x
    x = 85,340,639.28/12,386.18
  6. Step 6: Final answer
    x = 6,889.99

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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.