Home / 8,926.98-12,319.80-5,150.85

Finding the Fourth Proportional to 8,926.98, 12,319.80 and 5,150.85

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Solution

The fourth proportional to 8,926.98, 12,319.80 and 5,150.85 is: 7,108.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,926.98 : 12,319.80 = 5,150.85 : x
  2. Step 2: Convert to fraction form
    8,926.98/12,319.80 = 5,150.85/x
  3. Step 3: Cross multiply
    8,926.98x = 12,319.80 × 5,150.85
  4. Step 4: Simplify right side
    8,926.98x = 63,457,441.83
  5. Step 5: Solve for x
    x = 63,457,441.83/8,926.98
  6. Step 6: Final answer
    x = 7,108.50

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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.