Home / 8,718.18-12,030.94-4,739.39

Finding the Fourth Proportional to 8,718.18, 12,030.94 and 4,739.39

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Solution

The fourth proportional to 8,718.18, 12,030.94 and 4,739.39 is: 6,540.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.18 : 12,030.94 = 4,739.39 : x
  2. Step 2: Convert to fraction form
    8,718.18/12,030.94 = 4,739.39/x
  3. Step 3: Cross multiply
    8,718.18x = 12,030.94 × 4,739.39
  4. Step 4: Simplify right side
    8,718.18x = 57,019,339.06
  5. Step 5: Solve for x
    x = 57,019,339.06/8,718.18
  6. Step 6: Final answer
    x = 6,540.28

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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.