Home / 15,561.37-21,476.48-8,663.23

Finding the Fourth Proportional to 15,561.37, 21,476.48 and 8,663.23

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Solution

The fourth proportional to 15,561.37, 21,476.48 and 8,663.23 is: 11,956.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,561.37 : 21,476.48 = 8,663.23 : x
  2. Step 2: Convert to fraction form
    15,561.37/21,476.48 = 8,663.23/x
  3. Step 3: Cross multiply
    15,561.37x = 21,476.48 × 8,663.23
  4. Step 4: Simplify right side
    15,561.37x = 186,055,685.83
  5. Step 5: Solve for x
    x = 186,055,685.83/15,561.37
  6. Step 6: Final answer
    x = 11,956.25

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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.