Home / 8,053.43-12,083.74-3,123.45

Finding the Fourth Proportional to 8,053.43, 12,083.74 and 3,123.45

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Solution

The fourth proportional to 8,053.43, 12,083.74 and 3,123.45 is: 4,686.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,053.43 : 12,083.74 = 3,123.45 : x
  2. Step 2: Convert to fraction form
    8,053.43/12,083.74 = 3,123.45/x
  3. Step 3: Cross multiply
    8,053.43x = 12,083.74 × 3,123.45
  4. Step 4: Simplify right side
    8,053.43x = 37,742,957.70
  5. Step 5: Solve for x
    x = 37,742,957.70/8,053.43
  6. Step 6: Final answer
    x = 4,686.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.