Home / 13,819.52-19,070.43-7,531.76

Finding the Fourth Proportional to 13,819.52, 19,070.43 and 7,531.76

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Solution

The fourth proportional to 13,819.52, 19,070.43 and 7,531.76 is: 10,393.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.52 : 19,070.43 = 7,531.76 : x
  2. Step 2: Convert to fraction form
    13,819.52/19,070.43 = 7,531.76/x
  3. Step 3: Cross multiply
    13,819.52x = 19,070.43 × 7,531.76
  4. Step 4: Simplify right side
    13,819.52x = 143,633,901.86
  5. Step 5: Solve for x
    x = 143,633,901.86/13,819.52
  6. Step 6: Final answer
    x = 10,393.55

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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.