Home / 8,995.18-12,412.88-5,015.54

Finding the Fourth Proportional to 8,995.18, 12,412.88 and 5,015.54

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Solution

The fourth proportional to 8,995.18, 12,412.88 and 5,015.54 is: 6,921.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,995.18 : 12,412.88 = 5,015.54 : x
  2. Step 2: Convert to fraction form
    8,995.18/12,412.88 = 5,015.54/x
  3. Step 3: Cross multiply
    8,995.18x = 12,412.88 × 5,015.54
  4. Step 4: Simplify right side
    8,995.18x = 62,257,296.16
  5. Step 5: Solve for x
    x = 62,257,296.16/8,995.18
  6. Step 6: Final answer
    x = 6,921.18

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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.