Home / 10,421.07-14,381.24-5,705.79

Finding the Fourth Proportional to 10,421.07, 14,381.24 and 5,705.79

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Solution

The fourth proportional to 10,421.07, 14,381.24 and 5,705.79 is: 7,874.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.07 : 14,381.24 = 5,705.79 : x
  2. Step 2: Convert to fraction form
    10,421.07/14,381.24 = 5,705.79/x
  3. Step 3: Cross multiply
    10,421.07x = 14,381.24 × 5,705.79
  4. Step 4: Simplify right side
    10,421.07x = 82,056,306.85
  5. Step 5: Solve for x
    x = 82,056,306.85/10,421.07
  6. Step 6: Final answer
    x = 7,874.08

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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.