Home / 11,947.23-17,920.93-4,156.05

Finding the Fourth Proportional to 11,947.23, 17,920.93 and 4,156.05

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Solution

The fourth proportional to 11,947.23, 17,920.93 and 4,156.05 is: 6,234.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,947.23 : 17,920.93 = 4,156.05 : x
  2. Step 2: Convert to fraction form
    11,947.23/17,920.93 = 4,156.05/x
  3. Step 3: Cross multiply
    11,947.23x = 17,920.93 × 4,156.05
  4. Step 4: Simplify right side
    11,947.23x = 74,480,281.13
  5. Step 5: Solve for x
    x = 74,480,281.13/11,947.23
  6. Step 6: Final answer
    x = 6,234.10

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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.