Home / 8,420.50-11,618.92-5,062.51

Finding the Fourth Proportional to 8,420.50, 11,618.92 and 5,062.51

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Solution

The fourth proportional to 8,420.50, 11,618.92 and 5,062.51 is: 6,985.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,420.50 : 11,618.92 = 5,062.51 : x
  2. Step 2: Convert to fraction form
    8,420.50/11,618.92 = 5,062.51/x
  3. Step 3: Cross multiply
    8,420.50x = 11,618.92 × 5,062.51
  4. Step 4: Simplify right side
    8,420.50x = 58,820,898.69
  5. Step 5: Solve for x
    x = 58,820,898.69/8,420.50
  6. Step 6: Final answer
    x = 6,985.44

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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.