Home / 8,700.87-13,051.26-2,127.09

Finding the Fourth Proportional to 8,700.87, 13,051.26 and 2,127.09

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Solution

The fourth proportional to 8,700.87, 13,051.26 and 2,127.09 is: 3,190.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,700.87 : 13,051.26 = 2,127.09 : x
  2. Step 2: Convert to fraction form
    8,700.87/13,051.26 = 2,127.09/x
  3. Step 3: Cross multiply
    8,700.87x = 13,051.26 × 2,127.09
  4. Step 4: Simplify right side
    8,700.87x = 27,761,204.63
  5. Step 5: Solve for x
    x = 27,761,204.63/8,700.87
  6. Step 6: Final answer
    x = 3,190.62

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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.