Home / 10,913.40-16,357.95-4,672.35

Finding the Fourth Proportional to 10,913.40, 16,357.95 and 4,672.35

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Solution

The fourth proportional to 10,913.40, 16,357.95 and 4,672.35 is: 7,003.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.40 : 16,357.95 = 4,672.35 : x
  2. Step 2: Convert to fraction form
    10,913.40/16,357.95 = 4,672.35/x
  3. Step 3: Cross multiply
    10,913.40x = 16,357.95 × 4,672.35
  4. Step 4: Simplify right side
    10,913.40x = 76,430,067.68
  5. Step 5: Solve for x
    x = 76,430,067.68/10,913.40
  6. Step 6: Final answer
    x = 7,003.32

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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.