Home / 10,221.81-14,107.40-6,242.07

Finding the Fourth Proportional to 10,221.81, 14,107.40 and 6,242.07

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Solution

The fourth proportional to 10,221.81, 14,107.40 and 6,242.07 is: 8,614.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.81 : 14,107.40 = 6,242.07 : x
  2. Step 2: Convert to fraction form
    10,221.81/14,107.40 = 6,242.07/x
  3. Step 3: Cross multiply
    10,221.81x = 14,107.40 × 6,242.07
  4. Step 4: Simplify right side
    10,221.81x = 88,059,378.32
  5. Step 5: Solve for x
    x = 88,059,378.32/10,221.81
  6. Step 6: Final answer
    x = 8,614.85

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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.