Home / 10,284.48-15,428.80-3,357.12

Finding the Fourth Proportional to 10,284.48, 15,428.80 and 3,357.12

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Solution

The fourth proportional to 10,284.48, 15,428.80 and 3,357.12 is: 5,036.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,284.48 : 15,428.80 = 3,357.12 : x
  2. Step 2: Convert to fraction form
    10,284.48/15,428.80 = 3,357.12/x
  3. Step 3: Cross multiply
    10,284.48x = 15,428.80 × 3,357.12
  4. Step 4: Simplify right side
    10,284.48x = 51,796,333.06
  5. Step 5: Solve for x
    x = 51,796,333.06/10,284.48
  6. Step 6: Final answer
    x = 5,036.36

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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.