Home / 12,599.07-17,387.43-7,222.40

Finding the Fourth Proportional to 12,599.07, 17,387.43 and 7,222.40

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Solution

The fourth proportional to 12,599.07, 17,387.43 and 7,222.40 is: 9,967.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,599.07 : 17,387.43 = 7,222.40 : x
  2. Step 2: Convert to fraction form
    12,599.07/17,387.43 = 7,222.40/x
  3. Step 3: Cross multiply
    12,599.07x = 17,387.43 × 7,222.40
  4. Step 4: Simplify right side
    12,599.07x = 125,578,974.43
  5. Step 5: Solve for x
    x = 125,578,974.43/12,599.07
  6. Step 6: Final answer
    x = 9,967.32

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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.