Home / 13,946.55-20,919.86-9,805.08

Finding the Fourth Proportional to 13,946.55, 20,919.86 and 9,805.08

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Solution

The fourth proportional to 13,946.55, 20,919.86 and 9,805.08 is: 14,707.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,946.55 : 20,919.86 = 9,805.08 : x
  2. Step 2: Convert to fraction form
    13,946.55/20,919.86 = 9,805.08/x
  3. Step 3: Cross multiply
    13,946.55x = 20,919.86 × 9,805.08
  4. Step 4: Simplify right side
    13,946.55x = 205,120,900.89
  5. Step 5: Solve for x
    x = 205,120,900.89/13,946.55
  6. Step 6: Final answer
    x = 14,707.64

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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.