Home / 15,766.37-21,756.71-9,051.56

Finding the Fourth Proportional to 15,766.37, 21,756.71 and 9,051.56

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Solution

The fourth proportional to 15,766.37, 21,756.71 and 9,051.56 is: 12,490.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,766.37 : 21,756.71 = 9,051.56 : x
  2. Step 2: Convert to fraction form
    15,766.37/21,756.71 = 9,051.56/x
  3. Step 3: Cross multiply
    15,766.37x = 21,756.71 × 9,051.56
  4. Step 4: Simplify right side
    15,766.37x = 196,932,011.93
  5. Step 5: Solve for x
    x = 196,932,011.93/15,766.37
  6. Step 6: Final answer
    x = 12,490.64

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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.