Home / 13,215.69-19,823.54-3,355.02

Finding the Fourth Proportional to 13,215.69, 19,823.54 and 3,355.02

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Solution

The fourth proportional to 13,215.69, 19,823.54 and 3,355.02 is: 5,032.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215.69 : 19,823.54 = 3,355.02 : x
  2. Step 2: Convert to fraction form
    13,215.69/19,823.54 = 3,355.02/x
  3. Step 3: Cross multiply
    13,215.69x = 19,823.54 × 3,355.02
  4. Step 4: Simplify right side
    13,215.69x = 66,508,356.40
  5. Step 5: Solve for x
    x = 66,508,356.40/13,215.69
  6. Step 6: Final answer
    x = 5,032.53

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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.