Home / 11,560.71-15,953.19-6,455.88

Finding the Fourth Proportional to 11,560.71, 15,953.19 and 6,455.88

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Solution

The fourth proportional to 11,560.71, 15,953.19 and 6,455.88 is: 8,908.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,560.71 : 15,953.19 = 6,455.88 : x
  2. Step 2: Convert to fraction form
    11,560.71/15,953.19 = 6,455.88/x
  3. Step 3: Cross multiply
    11,560.71x = 15,953.19 × 6,455.88
  4. Step 4: Simplify right side
    11,560.71x = 102,991,880.26
  5. Step 5: Solve for x
    x = 102,991,880.26/11,560.71
  6. Step 6: Final answer
    x = 8,908.79

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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.