Home / 15,574.80-21,493.28-8,501.64

Finding the Fourth Proportional to 15,574.80, 21,493.28 and 8,501.64

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Solution

The fourth proportional to 15,574.80, 21,493.28 and 8,501.64 is: 11,732.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,574.80 : 21,493.28 = 8,501.64 : x
  2. Step 2: Convert to fraction form
    15,574.80/21,493.28 = 8,501.64/x
  3. Step 3: Cross multiply
    15,574.80x = 21,493.28 × 8,501.64
  4. Step 4: Simplify right side
    15,574.80x = 182,728,128.98
  5. Step 5: Solve for x
    x = 182,728,128.98/15,574.80
  6. Step 6: Final answer
    x = 11,732.29

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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.