Home / 10,011.47-13,815.99-5,819.72

Finding the Fourth Proportional to 10,011.47, 13,815.99 and 5,819.72

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Solution

The fourth proportional to 10,011.47, 13,815.99 and 5,819.72 is: 8,031.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,011.47 : 13,815.99 = 5,819.72 : x
  2. Step 2: Convert to fraction form
    10,011.47/13,815.99 = 5,819.72/x
  3. Step 3: Cross multiply
    10,011.47x = 13,815.99 × 5,819.72
  4. Step 4: Simplify right side
    10,011.47x = 80,405,124.24
  5. Step 5: Solve for x
    x = 80,405,124.24/10,011.47
  6. Step 6: Final answer
    x = 8,031.30

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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.