Home / 13,668.30-18,861.84-7,699.50

Finding the Fourth Proportional to 13,668.30, 18,861.84 and 7,699.50

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Solution

The fourth proportional to 13,668.30, 18,861.84 and 7,699.50 is: 10,625.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,668.30 : 18,861.84 = 7,699.50 : x
  2. Step 2: Convert to fraction form
    13,668.30/18,861.84 = 7,699.50/x
  3. Step 3: Cross multiply
    13,668.30x = 18,861.84 × 7,699.50
  4. Step 4: Simplify right side
    13,668.30x = 145,226,737.08
  5. Step 5: Solve for x
    x = 145,226,737.08/13,668.30
  6. Step 6: Final answer
    x = 10,625.08

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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.