Home / 12,637.87-17,440.01-6,972.41

Finding the Fourth Proportional to 12,637.87, 17,440.01 and 6,972.41

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Solution

The fourth proportional to 12,637.87, 17,440.01 and 6,972.41 is: 9,621.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.87 : 17,440.01 = 6,972.41 : x
  2. Step 2: Convert to fraction form
    12,637.87/17,440.01 = 6,972.41/x
  3. Step 3: Cross multiply
    12,637.87x = 17,440.01 × 6,972.41
  4. Step 4: Simplify right side
    12,637.87x = 121,598,935.01
  5. Step 5: Solve for x
    x = 121,598,935.01/12,637.87
  6. Step 6: Final answer
    x = 9,621.79

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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.