Home / 13,467.87-18,587.07-7,800.91

Finding the Fourth Proportional to 13,467.87, 18,587.07 and 7,800.91

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Solution

The fourth proportional to 13,467.87, 18,587.07 and 7,800.91 is: 10,766.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,467.87 : 18,587.07 = 7,800.91 : x
  2. Step 2: Convert to fraction form
    13,467.87/18,587.07 = 7,800.91/x
  3. Step 3: Cross multiply
    13,467.87x = 18,587.07 × 7,800.91
  4. Step 4: Simplify right side
    13,467.87x = 144,996,013.77
  5. Step 5: Solve for x
    x = 144,996,013.77/13,467.87
  6. Step 6: Final answer
    x = 10,766.07

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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.