Home / 15,620.10-21,555.36-8,546.64

Finding the Fourth Proportional to 15,620.10, 21,555.36 and 8,546.64

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Solution

The fourth proportional to 15,620.10, 21,555.36 and 8,546.64 is: 11,794.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,620.10 : 21,555.36 = 8,546.64 : x
  2. Step 2: Convert to fraction form
    15,620.10/21,555.36 = 8,546.64/x
  3. Step 3: Cross multiply
    15,620.10x = 21,555.36 × 8,546.64
  4. Step 4: Simplify right side
    15,620.10x = 184,225,901.99
  5. Step 5: Solve for x
    x = 184,225,901.99/15,620.10
  6. Step 6: Final answer
    x = 11,794.16

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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.