Home / 9,985.68-14,979.36-3,412.32

Finding the Fourth Proportional to 9,985.68, 14,979.36 and 3,412.32

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Solution

The fourth proportional to 9,985.68, 14,979.36 and 3,412.32 is: 5,118.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,985.68 : 14,979.36 = 3,412.32 : x
  2. Step 2: Convert to fraction form
    9,985.68/14,979.36 = 3,412.32/x
  3. Step 3: Cross multiply
    9,985.68x = 14,979.36 × 3,412.32
  4. Step 4: Simplify right side
    9,985.68x = 51,114,369.72
  5. Step 5: Solve for x
    x = 51,114,369.72/9,985.68
  6. Step 6: Final answer
    x = 5,118.77

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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.