Home / 9,210.06-12,711.60-5,231.34

Finding the Fourth Proportional to 9,210.06, 12,711.60 and 5,231.34

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Solution

The fourth proportional to 9,210.06, 12,711.60 and 5,231.34 is: 7,220.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,210.06 : 12,711.60 = 5,231.34 : x
  2. Step 2: Convert to fraction form
    9,210.06/12,711.60 = 5,231.34/x
  3. Step 3: Cross multiply
    9,210.06x = 12,711.60 × 5,231.34
  4. Step 4: Simplify right side
    9,210.06x = 66,498,701.54
  5. Step 5: Solve for x
    x = 66,498,701.54/9,210.06
  6. Step 6: Final answer
    x = 7,220.22

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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.