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Finding the Fourth Proportional to 10,403.68, 14,352.50 and 6,209.50

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Solution

The fourth proportional to 10,403.68, 14,352.50 and 6,209.50 is: 8,566.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,403.68 : 14,352.50 = 6,209.50 : x
  2. Step 2: Convert to fraction form
    10,403.68/14,352.50 = 6,209.50/x
  3. Step 3: Cross multiply
    10,403.68x = 14,352.50 × 6,209.50
  4. Step 4: Simplify right side
    10,403.68x = 89,121,848.75
  5. Step 5: Solve for x
    x = 89,121,848.75/10,403.68
  6. Step 6: Final answer
    x = 8,566.38

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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.