Home / 15,239.36-21,032.07-8,526.69

Finding the Fourth Proportional to 15,239.36, 21,032.07 and 8,526.69

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Solution

The fourth proportional to 15,239.36, 21,032.07 and 8,526.69 is: 11,767.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,239.36 : 21,032.07 = 8,526.69 : x
  2. Step 2: Convert to fraction form
    15,239.36/21,032.07 = 8,526.69/x
  3. Step 3: Cross multiply
    15,239.36x = 21,032.07 × 8,526.69
  4. Step 4: Simplify right side
    15,239.36x = 179,333,940.95
  5. Step 5: Solve for x
    x = 179,333,940.95/15,239.36
  6. Step 6: Final answer
    x = 11,767.81

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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.