Home / 9,919.50-14,878.80-3,345.66

Finding the Fourth Proportional to 9,919.50, 14,878.80 and 3,345.66

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Solution

The fourth proportional to 9,919.50, 14,878.80 and 3,345.66 is: 5,018.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,919.50 : 14,878.80 = 3,345.66 : x
  2. Step 2: Convert to fraction form
    9,919.50/14,878.80 = 3,345.66/x
  3. Step 3: Cross multiply
    9,919.50x = 14,878.80 × 3,345.66
  4. Step 4: Simplify right side
    9,919.50x = 49,779,406.01
  5. Step 5: Solve for x
    x = 49,779,406.01/9,919.50
  6. Step 6: Final answer
    x = 5,018.34

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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.