Home / 9,129.09-12,594.15-5,350.34

Finding the Fourth Proportional to 9,129.09, 12,594.15 and 5,350.34

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Solution

The fourth proportional to 9,129.09, 12,594.15 and 5,350.34 is: 7,381.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.09 : 12,594.15 = 5,350.34 : x
  2. Step 2: Convert to fraction form
    9,129.09/12,594.15 = 5,350.34/x
  3. Step 3: Cross multiply
    9,129.09x = 12,594.15 × 5,350.34
  4. Step 4: Simplify right side
    9,129.09x = 67,382,984.51
  5. Step 5: Solve for x
    x = 67,382,984.51/9,129.09
  6. Step 6: Final answer
    x = 7,381.13

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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.