Home / 13,989.06-19,304.18-7,700.22

Finding the Fourth Proportional to 13,989.06, 19,304.18 and 7,700.22

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Solution

The fourth proportional to 13,989.06, 19,304.18 and 7,700.22 is: 10,625.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989.06 : 19,304.18 = 7,700.22 : x
  2. Step 2: Convert to fraction form
    13,989.06/19,304.18 = 7,700.22/x
  3. Step 3: Cross multiply
    13,989.06x = 19,304.18 × 7,700.22
  4. Step 4: Simplify right side
    13,989.06x = 148,646,432.92
  5. Step 5: Solve for x
    x = 148,646,432.92/13,989.06
  6. Step 6: Final answer
    x = 10,625.91

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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.