Home / 9,921.48-14,877.87-3,345.90

Finding the Fourth Proportional to 9,921.48, 14,877.87 and 3,345.90

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Solution

The fourth proportional to 9,921.48, 14,877.87 and 3,345.90 is: 5,017.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,921.48 : 14,877.87 = 3,345.90 : x
  2. Step 2: Convert to fraction form
    9,921.48/14,877.87 = 3,345.90/x
  3. Step 3: Cross multiply
    9,921.48x = 14,877.87 × 3,345.90
  4. Step 4: Simplify right side
    9,921.48x = 49,779,865.23
  5. Step 5: Solve for x
    x = 49,779,865.23/9,921.48
  6. Step 6: Final answer
    x = 5,017.38

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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.