Home / 11,190.76-15,444.06-7,407.40

Finding the Fourth Proportional to 11,190.76, 15,444.06 and 7,407.40

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Solution

The fourth proportional to 11,190.76, 15,444.06 and 7,407.40 is: 10,222.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.76 : 15,444.06 = 7,407.40 : x
  2. Step 2: Convert to fraction form
    11,190.76/15,444.06 = 7,407.40/x
  3. Step 3: Cross multiply
    11,190.76x = 15,444.06 × 7,407.40
  4. Step 4: Simplify right side
    11,190.76x = 114,400,330.04
  5. Step 5: Solve for x
    x = 114,400,330.04/11,190.76
  6. Step 6: Final answer
    x = 10,222.75

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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.