Home / 10,913.06-15,057.70-6,435.18

Finding the Fourth Proportional to 10,913.06, 15,057.70 and 6,435.18

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Solution

The fourth proportional to 10,913.06, 15,057.70 and 6,435.18 is: 8,879.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.06 : 15,057.70 = 6,435.18 : x
  2. Step 2: Convert to fraction form
    10,913.06/15,057.70 = 6,435.18/x
  3. Step 3: Cross multiply
    10,913.06x = 15,057.70 × 6,435.18
  4. Step 4: Simplify right side
    10,913.06x = 96,898,993.80
  5. Step 5: Solve for x
    x = 96,898,993.80/10,913.06
  6. Step 6: Final answer
    x = 8,879.18

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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.