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Finding the Fourth Proportional to 9,989.30, 14,966.93 and 5,595.86

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Solution

The fourth proportional to 9,989.30, 14,966.93 and 5,595.86 is: 8,384.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989.30 : 14,966.93 = 5,595.86 : x
  2. Step 2: Convert to fraction form
    9,989.30/14,966.93 = 5,595.86/x
  3. Step 3: Cross multiply
    9,989.30x = 14,966.93 × 5,595.86
  4. Step 4: Simplify right side
    9,989.30x = 83,752,784.06
  5. Step 5: Solve for x
    x = 83,752,784.06/9,989.30
  6. Step 6: Final answer
    x = 8,384.25

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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.