Home / 15,771.15-21,763.35-9,802.71

Finding the Fourth Proportional to 15,771.15, 21,763.35 and 9,802.71

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Solution

The fourth proportional to 15,771.15, 21,763.35 and 9,802.71 is: 13,527.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,771.15 : 21,763.35 = 9,802.71 : x
  2. Step 2: Convert to fraction form
    15,771.15/21,763.35 = 9,802.71/x
  3. Step 3: Cross multiply
    15,771.15x = 21,763.35 × 9,802.71
  4. Step 4: Simplify right side
    15,771.15x = 213,339,808.68
  5. Step 5: Solve for x
    x = 213,339,808.68/15,771.15
  6. Step 6: Final answer
    x = 13,527.22

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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.