Home / 13,819.25-19,070.57-7,531.63

Finding the Fourth Proportional to 13,819.25, 19,070.57 and 7,531.63

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Solution

The fourth proportional to 13,819.25, 19,070.57 and 7,531.63 is: 10,393.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.25 : 19,070.57 = 7,531.63 : x
  2. Step 2: Convert to fraction form
    13,819.25/19,070.57 = 7,531.63/x
  3. Step 3: Cross multiply
    13,819.25x = 19,070.57 × 7,531.63
  4. Step 4: Simplify right side
    13,819.25x = 143,632,477.13
  5. Step 5: Solve for x
    x = 143,632,477.13/13,819.25
  6. Step 6: Final answer
    x = 10,393.65

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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.