Home / 10,131.47-13,987.83-6,950.09

Finding the Fourth Proportional to 10,131.47, 13,987.83 and 6,950.09

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Solution

The fourth proportional to 10,131.47, 13,987.83 and 6,950.09 is: 9,595.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,131.47 : 13,987.83 = 6,950.09 : x
  2. Step 2: Convert to fraction form
    10,131.47/13,987.83 = 6,950.09/x
  3. Step 3: Cross multiply
    10,131.47x = 13,987.83 × 6,950.09
  4. Step 4: Simplify right side
    10,131.47x = 97,216,607.47
  5. Step 5: Solve for x
    x = 97,216,607.47/10,131.47
  6. Step 6: Final answer
    x = 9,595.51

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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.