Home / 9,860.04-13,611.78-6,278.58

Finding the Fourth Proportional to 9,860.04, 13,611.78 and 6,278.58

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Solution

The fourth proportional to 9,860.04, 13,611.78 and 6,278.58 is: 8,667.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,860.04 : 13,611.78 = 6,278.58 : x
  2. Step 2: Convert to fraction form
    9,860.04/13,611.78 = 6,278.58/x
  3. Step 3: Cross multiply
    9,860.04x = 13,611.78 × 6,278.58
  4. Step 4: Simplify right side
    9,860.04x = 85,462,649.67
  5. Step 5: Solve for x
    x = 85,462,649.67/9,860.04
  6. Step 6: Final answer
    x = 8,667.58

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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.