Home / 8,919.80-12,309.02-4,941.08

Finding the Fourth Proportional to 8,919.80, 12,309.02 and 4,941.08

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Solution

The fourth proportional to 8,919.80, 12,309.02 and 4,941.08 is: 6,818.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.80 : 12,309.02 = 4,941.08 : x
  2. Step 2: Convert to fraction form
    8,919.80/12,309.02 = 4,941.08/x
  3. Step 3: Cross multiply
    8,919.80x = 12,309.02 × 4,941.08
  4. Step 4: Simplify right side
    8,919.80x = 60,819,852.54
  5. Step 5: Solve for x
    x = 60,819,852.54/8,919.80
  6. Step 6: Final answer
    x = 6,818.52

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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.