Home / 15,498.54-21,388.05-9,210.96

Finding the Fourth Proportional to 15,498.54, 21,388.05 and 9,210.96

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Solution

The fourth proportional to 15,498.54, 21,388.05 and 9,210.96 is: 12,711.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,498.54 : 21,388.05 = 9,210.96 : x
  2. Step 2: Convert to fraction form
    15,498.54/21,388.05 = 9,210.96/x
  3. Step 3: Cross multiply
    15,498.54x = 21,388.05 × 9,210.96
  4. Step 4: Simplify right side
    15,498.54x = 197,004,473.03
  5. Step 5: Solve for x
    x = 197,004,473.03/15,498.54
  6. Step 6: Final answer
    x = 12,711.16

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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.