Home / 13,082.24-19,603.20-7,806.80

Finding the Fourth Proportional to 13,082.24, 19,603.20 and 7,806.80

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Solution

The fourth proportional to 13,082.24, 19,603.20 and 7,806.80 is: 11,698.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,082.24 : 19,603.20 = 7,806.80 : x
  2. Step 2: Convert to fraction form
    13,082.24/19,603.20 = 7,806.80/x
  3. Step 3: Cross multiply
    13,082.24x = 19,603.20 × 7,806.80
  4. Step 4: Simplify right side
    13,082.24x = 153,038,261.76
  5. Step 5: Solve for x
    x = 153,038,261.76/13,082.24
  6. Step 6: Final answer
    x = 11,698.17

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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.