Home / 11,532.88-15,916.10-6,688.59

Finding the Fourth Proportional to 11,532.88, 15,916.10 and 6,688.59

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Solution

The fourth proportional to 11,532.88, 15,916.10 and 6,688.59 is: 9,230.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,532.88 : 15,916.10 = 6,688.59 : x
  2. Step 2: Convert to fraction form
    11,532.88/15,916.10 = 6,688.59/x
  3. Step 3: Cross multiply
    11,532.88x = 15,916.10 × 6,688.59
  4. Step 4: Simplify right side
    11,532.88x = 106,456,263.70
  5. Step 5: Solve for x
    x = 106,456,263.70/11,532.88
  6. Step 6: Final answer
    x = 9,230.67

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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.