Home / 10,929.58-15,099.27-7,161.70

Finding the Fourth Proportional to 10,929.58, 15,099.27 and 7,161.70

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Solution

The fourth proportional to 10,929.58, 15,099.27 and 7,161.70 is: 9,893.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,929.58 : 15,099.27 = 7,161.70 : x
  2. Step 2: Convert to fraction form
    10,929.58/15,099.27 = 7,161.70/x
  3. Step 3: Cross multiply
    10,929.58x = 15,099.27 × 7,161.70
  4. Step 4: Simplify right side
    10,929.58x = 108,136,441.96
  5. Step 5: Solve for x
    x = 108,136,441.96/10,929.58
  6. Step 6: Final answer
    x = 9,893.92

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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.