Home / 11,325.88-15,628.04-6,290.14

Finding the Fourth Proportional to 11,325.88, 15,628.04 and 6,290.14

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Solution

The fourth proportional to 11,325.88, 15,628.04 and 6,290.14 is: 8,679.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,325.88 : 15,628.04 = 6,290.14 : x
  2. Step 2: Convert to fraction form
    11,325.88/15,628.04 = 6,290.14/x
  3. Step 3: Cross multiply
    11,325.88x = 15,628.04 × 6,290.14
  4. Step 4: Simplify right side
    11,325.88x = 98,302,559.53
  5. Step 5: Solve for x
    x = 98,302,559.53/11,325.88
  6. Step 6: Final answer
    x = 8,679.46

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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.