Home / 10,131.24-13,987.78-6,547.80

Finding the Fourth Proportional to 10,131.24, 13,987.78 and 6,547.80

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Solution

The fourth proportional to 10,131.24, 13,987.78 and 6,547.80 is: 9,040.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,131.24 : 13,987.78 = 6,547.80 : x
  2. Step 2: Convert to fraction form
    10,131.24/13,987.78 = 6,547.80/x
  3. Step 3: Cross multiply
    10,131.24x = 13,987.78 × 6,547.80
  4. Step 4: Simplify right side
    10,131.24x = 91,589,185.88
  5. Step 5: Solve for x
    x = 91,589,185.88/10,131.24
  6. Step 6: Final answer
    x = 9,040.27

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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.