Home / 15,116.64-20,858.58-8,740.86

Finding the Fourth Proportional to 15,116.64, 20,858.58 and 8,740.86

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Solution

The fourth proportional to 15,116.64, 20,858.58 and 8,740.86 is: 12,061.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,116.64 : 20,858.58 = 8,740.86 : x
  2. Step 2: Convert to fraction form
    15,116.64/20,858.58 = 8,740.86/x
  3. Step 3: Cross multiply
    15,116.64x = 20,858.58 × 8,740.86
  4. Step 4: Simplify right side
    15,116.64x = 182,321,927.58
  5. Step 5: Solve for x
    x = 182,321,927.58/15,116.64
  6. Step 6: Final answer
    x = 12,061.01

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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.