Home / 15,576.32-21,495.02-8,502.79

Finding the Fourth Proportional to 15,576.32, 21,495.02 and 8,502.79

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Solution

The fourth proportional to 15,576.32, 21,495.02 and 8,502.79 is: 11,733.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,576.32 : 21,495.02 = 8,502.79 : x
  2. Step 2: Convert to fraction form
    15,576.32/21,495.02 = 8,502.79/x
  3. Step 3: Cross multiply
    15,576.32x = 21,495.02 × 8,502.79
  4. Step 4: Simplify right side
    15,576.32x = 182,767,544.85
  5. Step 5: Solve for x
    x = 182,767,544.85/15,576.32
  6. Step 6: Final answer
    x = 11,733.68

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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.