Home / 13,339.85-20,012.65-7,098.94

Finding the Fourth Proportional to 13,339.85, 20,012.65 and 7,098.94

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Solution

The fourth proportional to 13,339.85, 20,012.65 and 7,098.94 is: 10,649.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,339.85 : 20,012.65 = 7,098.94 : x
  2. Step 2: Convert to fraction form
    13,339.85/20,012.65 = 7,098.94/x
  3. Step 3: Cross multiply
    13,339.85x = 20,012.65 × 7,098.94
  4. Step 4: Simplify right side
    13,339.85x = 142,068,648.79
  5. Step 5: Solve for x
    x = 142,068,648.79/13,339.85
  6. Step 6: Final answer
    x = 10,649.95

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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.