Home / 9,031.03-13,614.21-8,428.93

Finding the Fourth Proportional to 9,031.03, 13,614.21 and 8,428.93

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Solution

The fourth proportional to 9,031.03, 13,614.21 and 8,428.93 is: 12,706.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,031.03 : 13,614.21 = 8,428.93 : x
  2. Step 2: Convert to fraction form
    9,031.03/13,614.21 = 8,428.93/x
  3. Step 3: Cross multiply
    9,031.03x = 13,614.21 × 8,428.93
  4. Step 4: Simplify right side
    9,031.03x = 114,753,189.06
  5. Step 5: Solve for x
    x = 114,753,189.06/9,031.03
  6. Step 6: Final answer
    x = 12,706.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.