Home / 12,429.42-18,646.88-5,770

Finding the Fourth Proportional to 12,429.42, 18,646.88 and 5,770

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Solution

The fourth proportional to 12,429.42, 18,646.88 and 5,770 is: 8,656.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,429.42 : 18,646.88 = 5,770 : x
  2. Step 2: Convert to fraction form
    12,429.42/18,646.88 = 5,770/x
  3. Step 3: Cross multiply
    12,429.42x = 18,646.88 × 5,770
  4. Step 4: Simplify right side
    12,429.42x = 107,592,468.75
  5. Step 5: Solve for x
    x = 107,592,468.75/12,429.42
  6. Step 6: Final answer
    x = 8,656.28

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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.