Home / 13,220.49-19,828.48-4,335.65

Finding the Fourth Proportional to 13,220.49, 19,828.48 and 4,335.65

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Solution

The fourth proportional to 13,220.49, 19,828.48 and 4,335.65 is: 6,502.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.49 : 19,828.48 = 4,335.65 : x
  2. Step 2: Convert to fraction form
    13,220.49/19,828.48 = 4,335.65/x
  3. Step 3: Cross multiply
    13,220.49x = 19,828.48 × 4,335.65
  4. Step 4: Simplify right side
    13,220.49x = 85,969,349.31
  5. Step 5: Solve for x
    x = 85,969,349.31/13,220.49
  6. Step 6: Final answer
    x = 6,502.74

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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.