Home / 8,220.79-11,341.92-4,681.50

Finding the Fourth Proportional to 8,220.79, 11,341.92 and 4,681.50

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Solution

The fourth proportional to 8,220.79, 11,341.92 and 4,681.50 is: 6,458.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.79 : 11,341.92 = 4,681.50 : x
  2. Step 2: Convert to fraction form
    8,220.79/11,341.92 = 4,681.50/x
  3. Step 3: Cross multiply
    8,220.79x = 11,341.92 × 4,681.50
  4. Step 4: Simplify right side
    8,220.79x = 53,097,198.48
  5. Step 5: Solve for x
    x = 53,097,198.48/8,220.79
  6. Step 6: Final answer
    x = 6,458.89

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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.