Home / 15,535.23-21,438.59-8,461.64

Finding the Fourth Proportional to 15,535.23, 21,438.59 and 8,461.64

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Solution

The fourth proportional to 15,535.23, 21,438.59 and 8,461.64 is: 11,677.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,535.23 : 21,438.59 = 8,461.64 : x
  2. Step 2: Convert to fraction form
    15,535.23/21,438.59 = 8,461.64/x
  3. Step 3: Cross multiply
    15,535.23x = 21,438.59 × 8,461.64
  4. Step 4: Simplify right side
    15,535.23x = 181,405,481.19
  5. Step 5: Solve for x
    x = 181,405,481.19/15,535.23
  6. Step 6: Final answer
    x = 11,677.04

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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.