Home / 11,218.70-15,480.06-6,502.04

Finding the Fourth Proportional to 11,218.70, 15,480.06 and 6,502.04

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Solution

The fourth proportional to 11,218.70, 15,480.06 and 6,502.04 is: 8,971.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,218.70 : 15,480.06 = 6,502.04 : x
  2. Step 2: Convert to fraction form
    11,218.70/15,480.06 = 6,502.04/x
  3. Step 3: Cross multiply
    11,218.70x = 15,480.06 × 6,502.04
  4. Step 4: Simplify right side
    11,218.70x = 100,651,969.32
  5. Step 5: Solve for x
    x = 100,651,969.32/11,218.70
  6. Step 6: Final answer
    x = 8,971.80

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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.