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Finding the Fourth Proportional to 10,695.96, 14,759.88 and 6,219

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Solution

The fourth proportional to 10,695.96, 14,759.88 and 6,219 is: 8,581.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,695.96 : 14,759.88 = 6,219 : x
  2. Step 2: Convert to fraction form
    10,695.96/14,759.88 = 6,219/x
  3. Step 3: Cross multiply
    10,695.96x = 14,759.88 × 6,219
  4. Step 4: Simplify right side
    10,695.96x = 91,791,693.72
  5. Step 5: Solve for x
    x = 91,791,693.72/10,695.96
  6. Step 6: Final answer
    x = 8,581.90

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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.