Home / 8,685.11-11,985.51-4,908.35

Finding the Fourth Proportional to 8,685.11, 11,985.51 and 4,908.35

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Solution

The fourth proportional to 8,685.11, 11,985.51 and 4,908.35 is: 6,773.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685.11 : 11,985.51 = 4,908.35 : x
  2. Step 2: Convert to fraction form
    8,685.11/11,985.51 = 4,908.35/x
  3. Step 3: Cross multiply
    8,685.11x = 11,985.51 × 4,908.35
  4. Step 4: Simplify right side
    8,685.11x = 58,829,053.47
  5. Step 5: Solve for x
    x = 58,829,053.47/8,685.11
  6. Step 6: Final answer
    x = 6,773.55

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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.