Home / 10,551.86-15,829.55-4,315.22

Finding the Fourth Proportional to 10,551.86, 15,829.55 and 4,315.22

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Solution

The fourth proportional to 10,551.86, 15,829.55 and 4,315.22 is: 6,473.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,551.86 : 15,829.55 = 4,315.22 : x
  2. Step 2: Convert to fraction form
    10,551.86/15,829.55 = 4,315.22/x
  3. Step 3: Cross multiply
    10,551.86x = 15,829.55 × 4,315.22
  4. Step 4: Simplify right side
    10,551.86x = 68,307,990.75
  5. Step 5: Solve for x
    x = 68,307,990.75/10,551.86
  6. Step 6: Final answer
    x = 6,473.55

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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.