Home / 15,552.24-21,462.12-8,478.66

Finding the Fourth Proportional to 15,552.24, 21,462.12 and 8,478.66

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Solution

The fourth proportional to 15,552.24, 21,462.12 and 8,478.66 is: 11,700.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,552.24 : 21,462.12 = 8,478.66 : x
  2. Step 2: Convert to fraction form
    15,552.24/21,462.12 = 8,478.66/x
  3. Step 3: Cross multiply
    15,552.24x = 21,462.12 × 8,478.66
  4. Step 4: Simplify right side
    15,552.24x = 181,970,018.36
  5. Step 5: Solve for x
    x = 181,970,018.36/15,552.24
  6. Step 6: Final answer
    x = 11,700.57

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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.