Home / 15,910.02-21,956.27-9,618.75

Finding the Fourth Proportional to 15,910.02, 21,956.27 and 9,618.75

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Solution

The fourth proportional to 15,910.02, 21,956.27 and 9,618.75 is: 13,274.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,910.02 : 21,956.27 = 9,618.75 : x
  2. Step 2: Convert to fraction form
    15,910.02/21,956.27 = 9,618.75/x
  3. Step 3: Cross multiply
    15,910.02x = 21,956.27 × 9,618.75
  4. Step 4: Simplify right side
    15,910.02x = 211,191,823.97
  5. Step 5: Solve for x
    x = 211,191,823.97/15,910.02
  6. Step 6: Final answer
    x = 13,274.14

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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.