Home / 10,889.64-15,021.45-6,903.90

Finding the Fourth Proportional to 10,889.64, 15,021.45 and 6,903.90

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Solution

The fourth proportional to 10,889.64, 15,021.45 and 6,903.90 is: 9,523.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.64 : 15,021.45 = 6,903.90 : x
  2. Step 2: Convert to fraction form
    10,889.64/15,021.45 = 6,903.90/x
  3. Step 3: Cross multiply
    10,889.64x = 15,021.45 × 6,903.90
  4. Step 4: Simplify right side
    10,889.64x = 103,706,588.66
  5. Step 5: Solve for x
    x = 103,706,588.66/10,889.64
  6. Step 6: Final answer
    x = 9,523.42

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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.