Home / 11,359.64-15,678.89-7,373.84

Finding the Fourth Proportional to 11,359.64, 15,678.89 and 7,373.84

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Solution

The fourth proportional to 11,359.64, 15,678.89 and 7,373.84 is: 10,177.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,359.64 : 15,678.89 = 7,373.84 : x
  2. Step 2: Convert to fraction form
    11,359.64/15,678.89 = 7,373.84/x
  3. Step 3: Cross multiply
    11,359.64x = 15,678.89 × 7,373.84
  4. Step 4: Simplify right side
    11,359.64x = 115,613,559.36
  5. Step 5: Solve for x
    x = 115,613,559.36/11,359.64
  6. Step 6: Final answer
    x = 10,177.57

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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.