Home / 15,110.28-20,851.58-8,396.32

Finding the Fourth Proportional to 15,110.28, 20,851.58 and 8,396.32

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Solution

The fourth proportional to 15,110.28, 20,851.58 and 8,396.32 is: 11,586.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,110.28 : 20,851.58 = 8,396.32 : x
  2. Step 2: Convert to fraction form
    15,110.28/20,851.58 = 8,396.32/x
  3. Step 3: Cross multiply
    15,110.28x = 20,851.58 × 8,396.32
  4. Step 4: Simplify right side
    15,110.28x = 175,076,538.19
  5. Step 5: Solve for x
    x = 175,076,538.19/15,110.28
  6. Step 6: Final answer
    x = 11,586.58

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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.