Home / 10,155.77-15,231.78-4,607.78

Finding the Fourth Proportional to 10,155.77, 15,231.78 and 4,607.78

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Solution

The fourth proportional to 10,155.77, 15,231.78 and 4,607.78 is: 6,910.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,155.77 : 15,231.78 = 4,607.78 : x
  2. Step 2: Convert to fraction form
    10,155.77/15,231.78 = 4,607.78/x
  3. Step 3: Cross multiply
    10,155.77x = 15,231.78 × 4,607.78
  4. Step 4: Simplify right side
    10,155.77x = 70,184,615.09
  5. Step 5: Solve for x
    x = 70,184,615.09/10,155.77
  6. Step 6: Final answer
    x = 6,910.82

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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.