Home / 10,781.40-14,878.71-6,065.58

Finding the Fourth Proportional to 10,781.40, 14,878.71 and 6,065.58

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Solution

The fourth proportional to 10,781.40, 14,878.71 and 6,065.58 is: 8,370.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,781.40 : 14,878.71 = 6,065.58 : x
  2. Step 2: Convert to fraction form
    10,781.40/14,878.71 = 6,065.58/x
  3. Step 3: Cross multiply
    10,781.40x = 14,878.71 × 6,065.58
  4. Step 4: Simplify right side
    10,781.40x = 90,248,005.80
  5. Step 5: Solve for x
    x = 90,248,005.80/10,781.40
  6. Step 6: Final answer
    x = 8,370.71

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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.