Home / 9,985.30-14,977.96-3,411.54

Finding the Fourth Proportional to 9,985.30, 14,977.96 and 3,411.54

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Solution

The fourth proportional to 9,985.30, 14,977.96 and 3,411.54 is: 5,117.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,985.30 : 14,977.96 = 3,411.54 : x
  2. Step 2: Convert to fraction form
    9,985.30/14,977.96 = 3,411.54/x
  3. Step 3: Cross multiply
    9,985.30x = 14,977.96 × 3,411.54
  4. Step 4: Simplify right side
    9,985.30x = 51,097,901.13
  5. Step 5: Solve for x
    x = 51,097,901.13/9,985.30
  6. Step 6: Final answer
    x = 5,117.31

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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.