Home / 13,767.52-18,998.50-7,799.20

Finding the Fourth Proportional to 13,767.52, 18,998.50 and 7,799.20

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Solution

The fourth proportional to 13,767.52, 18,998.50 and 7,799.20 is: 10,762.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,767.52 : 18,998.50 = 7,799.20 : x
  2. Step 2: Convert to fraction form
    13,767.52/18,998.50 = 7,799.20/x
  3. Step 3: Cross multiply
    13,767.52x = 18,998.50 × 7,799.20
  4. Step 4: Simplify right side
    13,767.52x = 148,173,155.70
  5. Step 5: Solve for x
    x = 148,173,155.70/13,767.52
  6. Step 6: Final answer
    x = 10,762.52

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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.