Home / 10,935.20-15,089.06-6,155.39

Finding the Fourth Proportional to 10,935.20, 15,089.06 and 6,155.39

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Solution

The fourth proportional to 10,935.20, 15,089.06 and 6,155.39 is: 8,493.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,935.20 : 15,089.06 = 6,155.39 : x
  2. Step 2: Convert to fraction form
    10,935.20/15,089.06 = 6,155.39/x
  3. Step 3: Cross multiply
    10,935.20x = 15,089.06 × 6,155.39
  4. Step 4: Simplify right side
    10,935.20x = 92,878,942.81
  5. Step 5: Solve for x
    x = 92,878,942.81/10,935.20
  6. Step 6: Final answer
    x = 8,493.58

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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.