Home / 7,715.22-10,657.89-6,141.30

Finding the Fourth Proportional to 7,715.22, 10,657.89 and 6,141.30

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Solution

The fourth proportional to 7,715.22, 10,657.89 and 6,141.30 is: 8,483.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.22 : 10,657.89 = 6,141.30 : x
  2. Step 2: Convert to fraction form
    7,715.22/10,657.89 = 6,141.30/x
  3. Step 3: Cross multiply
    7,715.22x = 10,657.89 × 6,141.30
  4. Step 4: Simplify right side
    7,715.22x = 65,453,299.86
  5. Step 5: Solve for x
    x = 65,453,299.86/7,715.22
  6. Step 6: Final answer
    x = 8,483.66

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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.