Home / 13,777.16-20,668.98-4,289.04

Finding the Fourth Proportional to 13,777.16, 20,668.98 and 4,289.04

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Solution

The fourth proportional to 13,777.16, 20,668.98 and 4,289.04 is: 6,434.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,777.16 : 20,668.98 = 4,289.04 : x
  2. Step 2: Convert to fraction form
    13,777.16/20,668.98 = 4,289.04/x
  3. Step 3: Cross multiply
    13,777.16x = 20,668.98 × 4,289.04
  4. Step 4: Simplify right side
    13,777.16x = 88,650,081.98
  5. Step 5: Solve for x
    x = 88,650,081.98/13,777.16
  6. Step 6: Final answer
    x = 6,434.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.