Home / 10,172.05-15,256.49-2,777.11

Finding the Fourth Proportional to 10,172.05, 15,256.49 and 2,777.11

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Solution

The fourth proportional to 10,172.05, 15,256.49 and 2,777.11 is: 4,165.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,172.05 : 15,256.49 = 2,777.11 : x
  2. Step 2: Convert to fraction form
    10,172.05/15,256.49 = 2,777.11/x
  3. Step 3: Cross multiply
    10,172.05x = 15,256.49 × 2,777.11
  4. Step 4: Simplify right side
    10,172.05x = 42,368,898.92
  5. Step 5: Solve for x
    x = 42,368,898.92/10,172.05
  6. Step 6: Final answer
    x = 4,165.23

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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.