Home / 8,900.36-12,281.85-4,921.52

Finding the Fourth Proportional to 8,900.36, 12,281.85 and 4,921.52

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Solution

The fourth proportional to 8,900.36, 12,281.85 and 4,921.52 is: 6,791.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,900.36 : 12,281.85 = 4,921.52 : x
  2. Step 2: Convert to fraction form
    8,900.36/12,281.85 = 4,921.52/x
  3. Step 3: Cross multiply
    8,900.36x = 12,281.85 × 4,921.52
  4. Step 4: Simplify right side
    8,900.36x = 60,445,370.41
  5. Step 5: Solve for x
    x = 60,445,370.41/8,900.36
  6. Step 6: Final answer
    x = 6,791.34

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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.