Home / 10,721.34-16,087.14-4,145.76

Finding the Fourth Proportional to 10,721.34, 16,087.14 and 4,145.76

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Solution

The fourth proportional to 10,721.34, 16,087.14 and 4,145.76 is: 6,220.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,721.34 : 16,087.14 = 4,145.76 : x
  2. Step 2: Convert to fraction form
    10,721.34/16,087.14 = 4,145.76/x
  3. Step 3: Cross multiply
    10,721.34x = 16,087.14 × 4,145.76
  4. Step 4: Simplify right side
    10,721.34x = 66,693,421.53
  5. Step 5: Solve for x
    x = 66,693,421.53/10,721.34
  6. Step 6: Final answer
    x = 6,220.62

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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.