Home / 15,572.89-21,490.36-8,498.84

Finding the Fourth Proportional to 15,572.89, 21,490.36 and 8,498.84

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Solution

The fourth proportional to 15,572.89, 21,490.36 and 8,498.84 is: 11,728.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,572.89 : 21,490.36 = 8,498.84 : x
  2. Step 2: Convert to fraction form
    15,572.89/21,490.36 = 8,498.84/x
  3. Step 3: Cross multiply
    15,572.89x = 21,490.36 × 8,498.84
  4. Step 4: Simplify right side
    15,572.89x = 182,643,163.66
  5. Step 5: Solve for x
    x = 182,643,163.66/15,572.89
  6. Step 6: Final answer
    x = 11,728.28

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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.