Home / 13,825.66-19,079.40-7,538.04

Finding the Fourth Proportional to 13,825.66, 19,079.40 and 7,538.04

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Solution

The fourth proportional to 13,825.66, 19,079.40 and 7,538.04 is: 10,402.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,825.66 : 19,079.40 = 7,538.04 : x
  2. Step 2: Convert to fraction form
    13,825.66/19,079.40 = 7,538.04/x
  3. Step 3: Cross multiply
    13,825.66x = 19,079.40 × 7,538.04
  4. Step 4: Simplify right side
    13,825.66x = 143,821,184.98
  5. Step 5: Solve for x
    x = 143,821,184.98/13,825.66
  6. Step 6: Final answer
    x = 10,402.48

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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.