Home / 12,701.43-17,528.01-7,112.43

Finding the Fourth Proportional to 12,701.43, 17,528.01 and 7,112.43

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Solution

The fourth proportional to 12,701.43, 17,528.01 and 7,112.43 is: 9,815.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,701.43 : 17,528.01 = 7,112.43 : x
  2. Step 2: Convert to fraction form
    12,701.43/17,528.01 = 7,112.43/x
  3. Step 3: Cross multiply
    12,701.43x = 17,528.01 × 7,112.43
  4. Step 4: Simplify right side
    12,701.43x = 124,666,744.16
  5. Step 5: Solve for x
    x = 124,666,744.16/12,701.43
  6. Step 6: Final answer
    x = 9,815.17

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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.