Home / 10,821.20-14,934.65-6,346.67

Finding the Fourth Proportional to 10,821.20, 14,934.65 and 6,346.67

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Solution

The fourth proportional to 10,821.20, 14,934.65 and 6,346.67 is: 8,759.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.20 : 14,934.65 = 6,346.67 : x
  2. Step 2: Convert to fraction form
    10,821.20/14,934.65 = 6,346.67/x
  3. Step 3: Cross multiply
    10,821.20x = 14,934.65 × 6,346.67
  4. Step 4: Simplify right side
    10,821.20x = 94,785,188.71
  5. Step 5: Solve for x
    x = 94,785,188.71/10,821.20
  6. Step 6: Final answer
    x = 8,759.22

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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.