Home / 15,068.55-20,790.29-8,694.63

Finding the Fourth Proportional to 15,068.55, 20,790.29 and 8,694.63

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Solution

The fourth proportional to 15,068.55, 20,790.29 and 8,694.63 is: 11,996.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,068.55 : 20,790.29 = 8,694.63 : x
  2. Step 2: Convert to fraction form
    15,068.55/20,790.29 = 8,694.63/x
  3. Step 3: Cross multiply
    15,068.55x = 20,790.29 × 8,694.63
  4. Step 4: Simplify right side
    15,068.55x = 180,763,835.67
  5. Step 5: Solve for x
    x = 180,763,835.67/15,068.55
  6. Step 6: Final answer
    x = 11,996.10

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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.