Home / 9,921.02-14,881.53-7,731.39

Finding the Fourth Proportional to 9,921.02, 14,881.53 and 7,731.39

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Solution

The fourth proportional to 9,921.02, 14,881.53 and 7,731.39 is: 11,597.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,921.02 : 14,881.53 = 7,731.39 : x
  2. Step 2: Convert to fraction form
    9,921.02/14,881.53 = 7,731.39/x
  3. Step 3: Cross multiply
    9,921.02x = 14,881.53 × 7,731.39
  4. Step 4: Simplify right side
    9,921.02x = 115,054,856.42
  5. Step 5: Solve for x
    x = 115,054,856.42/9,921.02
  6. Step 6: Final answer
    x = 11,597.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.