Home / 15,294.06-21,106.89-8,580.33

Finding the Fourth Proportional to 15,294.06, 21,106.89 and 8,580.33

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Solution

The fourth proportional to 15,294.06, 21,106.89 and 8,580.33 is: 11,841.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,294.06 : 21,106.89 = 8,580.33 : x
  2. Step 2: Convert to fraction form
    15,294.06/21,106.89 = 8,580.33/x
  3. Step 3: Cross multiply
    15,294.06x = 21,106.89 × 8,580.33
  4. Step 4: Simplify right side
    15,294.06x = 181,104,081.47
  5. Step 5: Solve for x
    x = 181,104,081.47/15,294.06
  6. Step 6: Final answer
    x = 11,841.47

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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.