Home / 12,155.15-18,224.61-4,362.95

Finding the Fourth Proportional to 12,155.15, 18,224.61 and 4,362.95

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Solution

The fourth proportional to 12,155.15, 18,224.61 and 4,362.95 is: 6,541.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,155.15 : 18,224.61 = 4,362.95 : x
  2. Step 2: Convert to fraction form
    12,155.15/18,224.61 = 4,362.95/x
  3. Step 3: Cross multiply
    12,155.15x = 18,224.61 × 4,362.95
  4. Step 4: Simplify right side
    12,155.15x = 79,512,971.08
  5. Step 5: Solve for x
    x = 79,512,971.08/12,155.15
  6. Step 6: Final answer
    x = 6,541.51

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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.