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Finding the Fourth Proportional to 15,955.58, 22,010.03 and 9,985.98

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Solution

The fourth proportional to 15,955.58, 22,010.03 and 9,985.98 is: 13,775.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,955.58 : 22,010.03 = 9,985.98 : x
  2. Step 2: Convert to fraction form
    15,955.58/22,010.03 = 9,985.98/x
  3. Step 3: Cross multiply
    15,955.58x = 22,010.03 × 9,985.98
  4. Step 4: Simplify right side
    15,955.58x = 219,791,789.43
  5. Step 5: Solve for x
    x = 219,791,789.43/15,955.58
  6. Step 6: Final answer
    x = 13,775.23

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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.