Home / 9,872.79-13,624.08-5,396.51

Finding the Fourth Proportional to 9,872.79, 13,624.08 and 5,396.51

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Solution

The fourth proportional to 9,872.79, 13,624.08 and 5,396.51 is: 7,446.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,872.79 : 13,624.08 = 5,396.51 : x
  2. Step 2: Convert to fraction form
    9,872.79/13,624.08 = 5,396.51/x
  3. Step 3: Cross multiply
    9,872.79x = 13,624.08 × 5,396.51
  4. Step 4: Simplify right side
    9,872.79x = 73,522,483.96
  5. Step 5: Solve for x
    x = 73,522,483.96/9,872.79
  6. Step 6: Final answer
    x = 7,446.98

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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.