Home / 10,865.14-14,997.45-6,388.67

Finding the Fourth Proportional to 10,865.14, 14,997.45 and 6,388.67

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Solution

The fourth proportional to 10,865.14, 14,997.45 and 6,388.67 is: 8,818.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,865.14 : 14,997.45 = 6,388.67 : x
  2. Step 2: Convert to fraction form
    10,865.14/14,997.45 = 6,388.67/x
  3. Step 3: Cross multiply
    10,865.14x = 14,997.45 × 6,388.67
  4. Step 4: Simplify right side
    10,865.14x = 95,813,820.34
  5. Step 5: Solve for x
    x = 95,813,820.34/10,865.14
  6. Step 6: Final answer
    x = 8,818.46

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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.