Home / 10,313.75-15,465.40-5,040.88

Finding the Fourth Proportional to 10,313.75, 15,465.40 and 5,040.88

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Solution

The fourth proportional to 10,313.75, 15,465.40 and 5,040.88 is: 7,558.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,313.75 : 15,465.40 = 5,040.88 : x
  2. Step 2: Convert to fraction form
    10,313.75/15,465.40 = 5,040.88/x
  3. Step 3: Cross multiply
    10,313.75x = 15,465.40 × 5,040.88
  4. Step 4: Simplify right side
    10,313.75x = 77,959,174.29
  5. Step 5: Solve for x
    x = 77,959,174.29/10,313.75
  6. Step 6: Final answer
    x = 7,558.76

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1.5x scale

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.