Home / 10,939.07-15,089.63-6,904.46

Finding the Fourth Proportional to 10,939.07, 15,089.63 and 6,904.46

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Solution

The fourth proportional to 10,939.07, 15,089.63 and 6,904.46 is: 9,524.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,939.07 : 15,089.63 = 6,904.46 : x
  2. Step 2: Convert to fraction form
    10,939.07/15,089.63 = 6,904.46/x
  3. Step 3: Cross multiply
    10,939.07x = 15,089.63 × 6,904.46
  4. Step 4: Simplify right side
    10,939.07x = 104,185,749.95
  5. Step 5: Solve for x
    x = 104,185,749.95/10,939.07
  6. Step 6: Final answer
    x = 9,524.19

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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.