Home / 8,849.20-12,211.96-4,870.21

Finding the Fourth Proportional to 8,849.20, 12,211.96 and 4,870.21

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Solution

The fourth proportional to 8,849.20, 12,211.96 and 4,870.21 is: 6,720.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,849.20 : 12,211.96 = 4,870.21 : x
  2. Step 2: Convert to fraction form
    8,849.20/12,211.96 = 4,870.21/x
  3. Step 3: Cross multiply
    8,849.20x = 12,211.96 × 4,870.21
  4. Step 4: Simplify right side
    8,849.20x = 59,474,809.71
  5. Step 5: Solve for x
    x = 59,474,809.71/8,849.20
  6. Step 6: Final answer
    x = 6,720.93

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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.