Home / 13,325.80-19,989.06-6,309.13

Finding the Fourth Proportional to 13,325.80, 19,989.06 and 6,309.13

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Solution

The fourth proportional to 13,325.80, 19,989.06 and 6,309.13 is: 9,463.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325.80 : 19,989.06 = 6,309.13 : x
  2. Step 2: Convert to fraction form
    13,325.80/19,989.06 = 6,309.13/x
  3. Step 3: Cross multiply
    13,325.80x = 19,989.06 × 6,309.13
  4. Step 4: Simplify right side
    13,325.80x = 126,113,578.12
  5. Step 5: Solve for x
    x = 126,113,578.12/13,325.80
  6. Step 6: Final answer
    x = 9,463.87

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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.