Home / 9,323.40-12,866.28-5,131.62

Finding the Fourth Proportional to 9,323.40, 12,866.28 and 5,131.62

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Solution

The fourth proportional to 9,323.40, 12,866.28 and 5,131.62 is: 7,081.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,323.40 : 12,866.28 = 5,131.62 : x
  2. Step 2: Convert to fraction form
    9,323.40/12,866.28 = 5,131.62/x
  3. Step 3: Cross multiply
    9,323.40x = 12,866.28 × 5,131.62
  4. Step 4: Simplify right side
    9,323.40x = 66,024,859.77
  5. Step 5: Solve for x
    x = 66,024,859.77/9,323.40
  6. Step 6: Final answer
    x = 7,081.63

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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.