Home / 10,220.85-14,119.11-7,892.91

Finding the Fourth Proportional to 10,220.85, 14,119.11 and 7,892.91

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Solution

The fourth proportional to 10,220.85, 14,119.11 and 7,892.91 is: 10,903.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,220.85 : 14,119.11 = 7,892.91 : x
  2. Step 2: Convert to fraction form
    10,220.85/14,119.11 = 7,892.91/x
  3. Step 3: Cross multiply
    10,220.85x = 14,119.11 × 7,892.91
  4. Step 4: Simplify right side
    10,220.85x = 111,440,864.51
  5. Step 5: Solve for x
    x = 111,440,864.51/10,220.85
  6. Step 6: Final answer
    x = 10,903.29

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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.