Home / 9,515.35-13,143.73-7,304.55

Finding the Fourth Proportional to 9,515.35, 13,143.73 and 7,304.55

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Solution

The fourth proportional to 9,515.35, 13,143.73 and 7,304.55 is: 10,089.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,515.35 : 13,143.73 = 7,304.55 : x
  2. Step 2: Convert to fraction form
    9,515.35/13,143.73 = 7,304.55/x
  3. Step 3: Cross multiply
    9,515.35x = 13,143.73 × 7,304.55
  4. Step 4: Simplify right side
    9,515.35x = 96,008,985.51
  5. Step 5: Solve for x
    x = 96,008,985.51/9,515.35
  6. Step 6: Final answer
    x = 10,089.91

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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.