Home / 8,567.13-11,820-5,031.48

Finding the Fourth Proportional to 8,567.13, 11,820 and 5,031.48

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Solution

The fourth proportional to 8,567.13, 11,820 and 5,031.48 is: 6,941.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,567.13 : 11,820 = 5,031.48 : x
  2. Step 2: Convert to fraction form
    8,567.13/11,820 = 5,031.48/x
  3. Step 3: Cross multiply
    8,567.13x = 11,820 × 5,031.48
  4. Step 4: Simplify right side
    8,567.13x = 59,472,093.60
  5. Step 5: Solve for x
    x = 59,472,093.60/8,567.13
  6. Step 6: Final answer
    x = 6,941.89

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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.