Home / 10,137.60-15,208.72-3,212.10

Finding the Fourth Proportional to 10,137.60, 15,208.72 and 3,212.10

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Solution

The fourth proportional to 10,137.60, 15,208.72 and 3,212.10 is: 4,818.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,137.60 : 15,208.72 = 3,212.10 : x
  2. Step 2: Convert to fraction form
    10,137.60/15,208.72 = 3,212.10/x
  3. Step 3: Cross multiply
    10,137.60x = 15,208.72 × 3,212.10
  4. Step 4: Simplify right side
    10,137.60x = 48,851,929.51
  5. Step 5: Solve for x
    x = 48,851,929.51/10,137.60
  6. Step 6: Final answer
    x = 4,818.89

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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.