Home / 15,506.70-21,398.63-8,793.77

Finding the Fourth Proportional to 15,506.70, 21,398.63 and 8,793.77

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Solution

The fourth proportional to 15,506.70, 21,398.63 and 8,793.77 is: 12,135.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,506.70 : 21,398.63 = 8,793.77 : x
  2. Step 2: Convert to fraction form
    15,506.70/21,398.63 = 8,793.77/x
  3. Step 3: Cross multiply
    15,506.70x = 21,398.63 × 8,793.77
  4. Step 4: Simplify right side
    15,506.70x = 188,174,479.57
  5. Step 5: Solve for x
    x = 188,174,479.57/15,506.70
  6. Step 6: Final answer
    x = 12,135.04

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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.