Home / 10,507.19-15,750.15-6,811.76

Finding the Fourth Proportional to 10,507.19, 15,750.15 and 6,811.76

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Solution

The fourth proportional to 10,507.19, 15,750.15 and 6,811.76 is: 10,210.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,507.19 : 15,750.15 = 6,811.76 : x
  2. Step 2: Convert to fraction form
    10,507.19/15,750.15 = 6,811.76/x
  3. Step 3: Cross multiply
    10,507.19x = 15,750.15 × 6,811.76
  4. Step 4: Simplify right side
    10,507.19x = 107,286,255.60
  5. Step 5: Solve for x
    x = 107,286,255.60/10,507.19
  6. Step 6: Final answer
    x = 10,210.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.