Home / 9,321.23-12,862.94-5,339.51

Finding the Fourth Proportional to 9,321.23, 12,862.94 and 5,339.51

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Solution

The fourth proportional to 9,321.23, 12,862.94 and 5,339.51 is: 7,368.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,321.23 : 12,862.94 = 5,339.51 : x
  2. Step 2: Convert to fraction form
    9,321.23/12,862.94 = 5,339.51/x
  3. Step 3: Cross multiply
    9,321.23x = 12,862.94 × 5,339.51
  4. Step 4: Simplify right side
    9,321.23x = 68,681,770.06
  5. Step 5: Solve for x
    x = 68,681,770.06/9,321.23
  6. Step 6: Final answer
    x = 7,368.32

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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.