Home / 13,213.51-19,820.40-4,448.43

Finding the Fourth Proportional to 13,213.51, 19,820.40 and 4,448.43

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Solution

The fourth proportional to 13,213.51, 19,820.40 and 4,448.43 is: 6,672.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213.51 : 19,820.40 = 4,448.43 : x
  2. Step 2: Convert to fraction form
    13,213.51/19,820.40 = 4,448.43/x
  3. Step 3: Cross multiply
    13,213.51x = 19,820.40 × 4,448.43
  4. Step 4: Simplify right side
    13,213.51x = 88,169,711.52
  5. Step 5: Solve for x
    x = 88,169,711.52/13,213.51
  6. Step 6: Final answer
    x = 6,672.69

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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.