Home / 9,298.40-12,828.16-5,317.38

Finding the Fourth Proportional to 9,298.40, 12,828.16 and 5,317.38

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Solution

The fourth proportional to 9,298.40, 12,828.16 and 5,317.38 is: 7,335.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,298.40 : 12,828.16 = 5,317.38 : x
  2. Step 2: Convert to fraction form
    9,298.40/12,828.16 = 5,317.38/x
  3. Step 3: Cross multiply
    9,298.40x = 12,828.16 × 5,317.38
  4. Step 4: Simplify right side
    9,298.40x = 68,212,178.16
  5. Step 5: Solve for x
    x = 68,212,178.16/9,298.40
  6. Step 6: Final answer
    x = 7,335.91

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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.