Home / 10,315.64-15,471.23-5,045.18

Finding the Fourth Proportional to 10,315.64, 15,471.23 and 5,045.18

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Solution

The fourth proportional to 10,315.64, 15,471.23 and 5,045.18 is: 7,566.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,315.64 : 15,471.23 = 5,045.18 : x
  2. Step 2: Convert to fraction form
    10,315.64/15,471.23 = 5,045.18/x
  3. Step 3: Cross multiply
    10,315.64x = 15,471.23 × 5,045.18
  4. Step 4: Simplify right side
    10,315.64x = 78,055,037.59
  5. Step 5: Solve for x
    x = 78,055,037.59/10,315.64
  6. Step 6: Final answer
    x = 7,566.67

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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.