Home / 10,860.39-14,987.40-6,145.65

Finding the Fourth Proportional to 10,860.39, 14,987.40 and 6,145.65

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Solution

The fourth proportional to 10,860.39, 14,987.40 and 6,145.65 is: 8,481.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,860.39 : 14,987.40 = 6,145.65 : x
  2. Step 2: Convert to fraction form
    10,860.39/14,987.40 = 6,145.65/x
  3. Step 3: Cross multiply
    10,860.39x = 14,987.40 × 6,145.65
  4. Step 4: Simplify right side
    10,860.39x = 92,107,314.81
  5. Step 5: Solve for x
    x = 92,107,314.81/10,860.39
  6. Step 6: Final answer
    x = 8,481.03

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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.