Home / 10,307.16-15,460.86-2,911.86

Finding the Fourth Proportional to 10,307.16, 15,460.86 and 2,911.86

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Solution

The fourth proportional to 10,307.16, 15,460.86 and 2,911.86 is: 4,367.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,307.16 : 15,460.86 = 2,911.86 : x
  2. Step 2: Convert to fraction form
    10,307.16/15,460.86 = 2,911.86/x
  3. Step 3: Cross multiply
    10,307.16x = 15,460.86 × 2,911.86
  4. Step 4: Simplify right side
    10,307.16x = 45,019,859.80
  5. Step 5: Solve for x
    x = 45,019,859.80/10,307.16
  6. Step 6: Final answer
    x = 4,367.82

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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.