Home / 10,685.42-14,747.76-6,210.56

Finding the Fourth Proportional to 10,685.42, 14,747.76 and 6,210.56

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Solution

The fourth proportional to 10,685.42, 14,747.76 and 6,210.56 is: 8,571.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,685.42 : 14,747.76 = 6,210.56 : x
  2. Step 2: Convert to fraction form
    10,685.42/14,747.76 = 6,210.56/x
  3. Step 3: Cross multiply
    10,685.42x = 14,747.76 × 6,210.56
  4. Step 4: Simplify right side
    10,685.42x = 91,591,848.35
  5. Step 5: Solve for x
    x = 91,591,848.35/10,685.42
  6. Step 6: Final answer
    x = 8,571.67

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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.