Home / 10,913.86-15,062.40-6,133.81

Finding the Fourth Proportional to 10,913.86, 15,062.40 and 6,133.81

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Solution

The fourth proportional to 10,913.86, 15,062.40 and 6,133.81 is: 8,465.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.86 : 15,062.40 = 6,133.81 : x
  2. Step 2: Convert to fraction form
    10,913.86/15,062.40 = 6,133.81/x
  3. Step 3: Cross multiply
    10,913.86x = 15,062.40 × 6,133.81
  4. Step 4: Simplify right side
    10,913.86x = 92,389,824.43
  5. Step 5: Solve for x
    x = 92,389,824.43/10,913.86
  6. Step 6: Final answer
    x = 8,465.37

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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.