Home / 8,143.90-11,239.27-4,607.79

Finding the Fourth Proportional to 8,143.90, 11,239.27 and 4,607.79

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Solution

The fourth proportional to 8,143.90, 11,239.27 and 4,607.79 is: 6,359.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143.90 : 11,239.27 = 4,607.79 : x
  2. Step 2: Convert to fraction form
    8,143.90/11,239.27 = 4,607.79/x
  3. Step 3: Cross multiply
    8,143.90x = 11,239.27 × 4,607.79
  4. Step 4: Simplify right side
    8,143.90x = 51,788,184.39
  5. Step 5: Solve for x
    x = 51,788,184.39/8,143.90
  6. Step 6: Final answer
    x = 6,359.14

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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.