Home / 9,317.40-12,859.86-5,341.20

Finding the Fourth Proportional to 9,317.40, 12,859.86 and 5,341.20

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Solution

The fourth proportional to 9,317.40, 12,859.86 and 5,341.20 is: 7,371.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,317.40 : 12,859.86 = 5,341.20 : x
  2. Step 2: Convert to fraction form
    9,317.40/12,859.86 = 5,341.20/x
  3. Step 3: Cross multiply
    9,317.40x = 12,859.86 × 5,341.20
  4. Step 4: Simplify right side
    9,317.40x = 68,687,084.23
  5. Step 5: Solve for x
    x = 68,687,084.23/9,317.40
  6. Step 6: Final answer
    x = 7,371.92

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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.