Home / 10,947.36-15,105.12-6,230.40

Finding the Fourth Proportional to 10,947.36, 15,105.12 and 6,230.40

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Solution

The fourth proportional to 10,947.36, 15,105.12 and 6,230.40 is: 8,596.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,947.36 : 15,105.12 = 6,230.40 : x
  2. Step 2: Convert to fraction form
    10,947.36/15,105.12 = 6,230.40/x
  3. Step 3: Cross multiply
    10,947.36x = 15,105.12 × 6,230.40
  4. Step 4: Simplify right side
    10,947.36x = 94,110,939.65
  5. Step 5: Solve for x
    x = 94,110,939.65/10,947.36
  6. Step 6: Final answer
    x = 8,596.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.