Home / 11,365.18-15,685.88-7,330.88

Finding the Fourth Proportional to 11,365.18, 15,685.88 and 7,330.88

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Solution

The fourth proportional to 11,365.18, 15,685.88 and 7,330.88 is: 10,117.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,365.18 : 15,685.88 = 7,330.88 : x
  2. Step 2: Convert to fraction form
    11,365.18/15,685.88 = 7,330.88/x
  3. Step 3: Cross multiply
    11,365.18x = 15,685.88 × 7,330.88
  4. Step 4: Simplify right side
    11,365.18x = 114,991,303.97
  5. Step 5: Solve for x
    x = 114,991,303.97/11,365.18
  6. Step 6: Final answer
    x = 10,117.86

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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.