Home / 8,927.21-12,320.82-5,151.67

Finding the Fourth Proportional to 8,927.21, 12,320.82 and 5,151.67

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Solution

The fourth proportional to 8,927.21, 12,320.82 and 5,151.67 is: 7,110.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,927.21 : 12,320.82 = 5,151.67 : x
  2. Step 2: Convert to fraction form
    8,927.21/12,320.82 = 5,151.67/x
  3. Step 3: Cross multiply
    8,927.21x = 12,320.82 × 5,151.67
  4. Step 4: Simplify right side
    8,927.21x = 63,472,801.20
  5. Step 5: Solve for x
    x = 63,472,801.20/8,927.21
  6. Step 6: Final answer
    x = 7,110.04

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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.