Home / 15,694.03-21,657.18-8,620.03

Finding the Fourth Proportional to 15,694.03, 21,657.18 and 8,620.03

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Solution

The fourth proportional to 15,694.03, 21,657.18 and 8,620.03 is: 11,895.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,694.03 : 21,657.18 = 8,620.03 : x
  2. Step 2: Convert to fraction form
    15,694.03/21,657.18 = 8,620.03/x
  3. Step 3: Cross multiply
    15,694.03x = 21,657.18 × 8,620.03
  4. Step 4: Simplify right side
    15,694.03x = 186,685,541.32
  5. Step 5: Solve for x
    x = 186,685,541.32/15,694.03
  6. Step 6: Final answer
    x = 11,895.32

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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.