Home / 10,178.21-15,267.51-6,690.48

Finding the Fourth Proportional to 10,178.21, 15,267.51 and 6,690.48

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Solution

The fourth proportional to 10,178.21, 15,267.51 and 6,690.48 is: 10,035.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,178.21 : 15,267.51 = 6,690.48 : x
  2. Step 2: Convert to fraction form
    10,178.21/15,267.51 = 6,690.48/x
  3. Step 3: Cross multiply
    10,178.21x = 15,267.51 × 6,690.48
  4. Step 4: Simplify right side
    10,178.21x = 102,146,970.30
  5. Step 5: Solve for x
    x = 102,146,970.30/10,178.21
  6. Step 6: Final answer
    x = 10,035.85

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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.