Home / 10,421.46-15,623.64-4,872.06

Finding the Fourth Proportional to 10,421.46, 15,623.64 and 4,872.06

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Solution

The fourth proportional to 10,421.46, 15,623.64 and 4,872.06 is: 7,304.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.46 : 15,623.64 = 4,872.06 : x
  2. Step 2: Convert to fraction form
    10,421.46/15,623.64 = 4,872.06/x
  3. Step 3: Cross multiply
    10,421.46x = 15,623.64 × 4,872.06
  4. Step 4: Simplify right side
    10,421.46x = 76,119,311.50
  5. Step 5: Solve for x
    x = 76,119,311.50/10,421.46
  6. Step 6: Final answer
    x = 7,304.09

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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.