Home / 8,904.20-12,283.94-5,365.40

Finding the Fourth Proportional to 8,904.20, 12,283.94 and 5,365.40

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Solution

The fourth proportional to 8,904.20, 12,283.94 and 5,365.40 is: 7,401.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,904.20 : 12,283.94 = 5,365.40 : x
  2. Step 2: Convert to fraction form
    8,904.20/12,283.94 = 5,365.40/x
  3. Step 3: Cross multiply
    8,904.20x = 12,283.94 × 5,365.40
  4. Step 4: Simplify right side
    8,904.20x = 65,908,224.85
  5. Step 5: Solve for x
    x = 65,908,224.85/8,904.20
  6. Step 6: Final answer
    x = 7,401.93

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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.