Home / 15,681.51-23,529.38-7,791.89

Finding the Fourth Proportional to 15,681.51, 23,529.38 and 7,791.89

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Solution

The fourth proportional to 15,681.51, 23,529.38 and 7,791.89 is: 11,691.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,681.51 : 23,529.38 = 7,791.89 : x
  2. Step 2: Convert to fraction form
    15,681.51/23,529.38 = 7,791.89/x
  3. Step 3: Cross multiply
    15,681.51x = 23,529.38 × 7,791.89
  4. Step 4: Simplify right side
    15,681.51x = 183,338,184.12
  5. Step 5: Solve for x
    x = 183,338,184.12/15,681.51
  6. Step 6: Final answer
    x = 11,691.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.