Home / 10,655.75-15,988.24-5,719.63

Finding the Fourth Proportional to 10,655.75, 15,988.24 and 5,719.63

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Solution

The fourth proportional to 10,655.75, 15,988.24 and 5,719.63 is: 8,581.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,655.75 : 15,988.24 = 5,719.63 : x
  2. Step 2: Convert to fraction form
    10,655.75/15,988.24 = 5,719.63/x
  3. Step 3: Cross multiply
    10,655.75x = 15,988.24 × 5,719.63
  4. Step 4: Simplify right side
    10,655.75x = 91,446,804.32
  5. Step 5: Solve for x
    x = 91,446,804.32/10,655.75
  6. Step 6: Final answer
    x = 8,581.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.