Home / 10,929.36-15,081.48-6,736.80

Finding the Fourth Proportional to 10,929.36, 15,081.48 and 6,736.80

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Solution

The fourth proportional to 10,929.36, 15,081.48 and 6,736.80 is: 9,296.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,929.36 : 15,081.48 = 6,736.80 : x
  2. Step 2: Convert to fraction form
    10,929.36/15,081.48 = 6,736.80/x
  3. Step 3: Cross multiply
    10,929.36x = 15,081.48 × 6,736.80
  4. Step 4: Simplify right side
    10,929.36x = 101,600,914.46
  5. Step 5: Solve for x
    x = 101,600,914.46/10,929.36
  6. Step 6: Final answer
    x = 9,296.14

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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.