Home / 13,187.16-19,754.64-7,637.04

Finding the Fourth Proportional to 13,187.16, 19,754.64 and 7,637.04

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Solution

The fourth proportional to 13,187.16, 19,754.64 and 7,637.04 is: 11,440.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.16 : 19,754.64 = 7,637.04 : x
  2. Step 2: Convert to fraction form
    13,187.16/19,754.64 = 7,637.04/x
  3. Step 3: Cross multiply
    13,187.16x = 19,754.64 × 7,637.04
  4. Step 4: Simplify right side
    13,187.16x = 150,866,975.87
  5. Step 5: Solve for x
    x = 150,866,975.87/13,187.16
  6. Step 6: Final answer
    x = 11,440.44

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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.