Home / 10,851.63-14,977.94-6,138.69

Finding the Fourth Proportional to 10,851.63, 14,977.94 and 6,138.69

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Solution

The fourth proportional to 10,851.63, 14,977.94 and 6,138.69 is: 8,472.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,851.63 : 14,977.94 = 6,138.69 : x
  2. Step 2: Convert to fraction form
    10,851.63/14,977.94 = 6,138.69/x
  3. Step 3: Cross multiply
    10,851.63x = 14,977.94 × 6,138.69
  4. Step 4: Simplify right side
    10,851.63x = 91,944,899.81
  5. Step 5: Solve for x
    x = 91,944,899.81/10,851.63
  6. Step 6: Final answer
    x = 8,472.91

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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.