Home / 13,019.47-17,967.17-7,643.43

Finding the Fourth Proportional to 13,019.47, 17,967.17 and 7,643.43

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Solution

The fourth proportional to 13,019.47, 17,967.17 and 7,643.43 is: 10,548.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,019.47 : 17,967.17 = 7,643.43 : x
  2. Step 2: Convert to fraction form
    13,019.47/17,967.17 = 7,643.43/x
  3. Step 3: Cross multiply
    13,019.47x = 17,967.17 × 7,643.43
  4. Step 4: Simplify right side
    13,019.47x = 137,330,806.19
  5. Step 5: Solve for x
    x = 137,330,806.19/13,019.47
  6. Step 6: Final answer
    x = 10,548.11

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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.