Home / 8,851.74-12,211.30-5,708.94

Finding the Fourth Proportional to 8,851.74, 12,211.30 and 5,708.94

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Solution

The fourth proportional to 8,851.74, 12,211.30 and 5,708.94 is: 7,875.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,851.74 : 12,211.30 = 5,708.94 : x
  2. Step 2: Convert to fraction form
    8,851.74/12,211.30 = 5,708.94/x
  3. Step 3: Cross multiply
    8,851.74x = 12,211.30 × 5,708.94
  4. Step 4: Simplify right side
    8,851.74x = 69,713,579.02
  5. Step 5: Solve for x
    x = 69,713,579.02/8,851.74
  6. Step 6: Final answer
    x = 7,875.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.