Home / 10,688.22-14,749.29-6,211.62

Finding the Fourth Proportional to 10,688.22, 14,749.29 and 6,211.62

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Solution

The fourth proportional to 10,688.22, 14,749.29 and 6,211.62 is: 8,571.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,688.22 : 14,749.29 = 6,211.62 : x
  2. Step 2: Convert to fraction form
    10,688.22/14,749.29 = 6,211.62/x
  3. Step 3: Cross multiply
    10,688.22x = 14,749.29 × 6,211.62
  4. Step 4: Simplify right side
    10,688.22x = 91,616,984.75
  5. Step 5: Solve for x
    x = 91,616,984.75/10,688.22
  6. Step 6: Final answer
    x = 8,571.77

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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.