Home / 25,661.32-38,493.06-8,130.76

Finding the Fourth Proportional to 25,661.32, 38,493.06 and 8,130.76

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Solution

The fourth proportional to 25,661.32, 38,493.06 and 8,130.76 is: 12,196.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,661.32 : 38,493.06 = 8,130.76 : x
  2. Step 2: Convert to fraction form
    25,661.32/38,493.06 = 8,130.76/x
  3. Step 3: Cross multiply
    25,661.32x = 38,493.06 × 8,130.76
  4. Step 4: Simplify right side
    25,661.32x = 312,977,832.53
  5. Step 5: Solve for x
    x = 312,977,832.53/25,661.32
  6. Step 6: Final answer
    x = 12,196.48

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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.