Home / 15,772.64-21,775.44-10,474.72

Finding the Fourth Proportional to 15,772.64, 21,775.44 and 10,474.72

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Solution

The fourth proportional to 15,772.64, 21,775.44 and 10,474.72 is: 14,461.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,772.64 : 21,775.44 = 10,474.72 : x
  2. Step 2: Convert to fraction form
    15,772.64/21,775.44 = 10,474.72/x
  3. Step 3: Cross multiply
    15,772.64x = 21,775.44 × 10,474.72
  4. Step 4: Simplify right side
    15,772.64x = 228,091,636.88
  5. Step 5: Solve for x
    x = 228,091,636.88/15,772.64
  6. Step 6: Final answer
    x = 14,461.22

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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.