Home / 9,119.24-12,583-5,085.20

Finding the Fourth Proportional to 9,119.24, 12,583 and 5,085.20

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Solution

The fourth proportional to 9,119.24, 12,583 and 5,085.20 is: 7,016.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119.24 : 12,583 = 5,085.20 : x
  2. Step 2: Convert to fraction form
    9,119.24/12,583 = 5,085.20/x
  3. Step 3: Cross multiply
    9,119.24x = 12,583 × 5,085.20
  4. Step 4: Simplify right side
    9,119.24x = 63,987,071.60
  5. Step 5: Solve for x
    x = 63,987,071.60/9,119.24
  6. Step 6: Final answer
    x = 7,016.71

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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.