Home / 11,455.56-15,799.68-7,677.45

Finding the Fourth Proportional to 11,455.56, 15,799.68 and 7,677.45

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Solution

The fourth proportional to 11,455.56, 15,799.68 and 7,677.45 is: 10,588.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.56 : 15,799.68 = 7,677.45 : x
  2. Step 2: Convert to fraction form
    11,455.56/15,799.68 = 7,677.45/x
  3. Step 3: Cross multiply
    11,455.56x = 15,799.68 × 7,677.45
  4. Step 4: Simplify right side
    11,455.56x = 121,301,253.22
  5. Step 5: Solve for x
    x = 121,301,253.22/11,455.56
  6. Step 6: Final answer
    x = 10,588.85

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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.