Home / 11,220.80-15,484.49-6,116.36

Finding the Fourth Proportional to 11,220.80, 15,484.49 and 6,116.36

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Solution

The fourth proportional to 11,220.80, 15,484.49 and 6,116.36 is: 8,440.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.80 : 15,484.49 = 6,116.36 : x
  2. Step 2: Convert to fraction form
    11,220.80/15,484.49 = 6,116.36/x
  3. Step 3: Cross multiply
    11,220.80x = 15,484.49 × 6,116.36
  4. Step 4: Simplify right side
    11,220.80x = 94,708,607.25
  5. Step 5: Solve for x
    x = 94,708,607.25/11,220.80
  6. Step 6: Final answer
    x = 8,440.45

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Double scale
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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.