Home / 13,126.80-19,690.48-5,330.24

Finding the Fourth Proportional to 13,126.80, 19,690.48 and 5,330.24

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Solution

The fourth proportional to 13,126.80, 19,690.48 and 5,330.24 is: 7,995.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126.80 : 19,690.48 = 5,330.24 : x
  2. Step 2: Convert to fraction form
    13,126.80/19,690.48 = 5,330.24/x
  3. Step 3: Cross multiply
    13,126.80x = 19,690.48 × 5,330.24
  4. Step 4: Simplify right side
    13,126.80x = 104,954,984.12
  5. Step 5: Solve for x
    x = 104,954,984.12/13,126.80
  6. Step 6: Final answer
    x = 7,995.47

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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.