Home / 12,700.39-19,051.85-4,379.32

Finding the Fourth Proportional to 12,700.39, 19,051.85 and 4,379.32

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Solution

The fourth proportional to 12,700.39, 19,051.85 and 4,379.32 is: 6,569.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,700.39 : 19,051.85 = 4,379.32 : x
  2. Step 2: Convert to fraction form
    12,700.39/19,051.85 = 4,379.32/x
  3. Step 3: Cross multiply
    12,700.39x = 19,051.85 × 4,379.32
  4. Step 4: Simplify right side
    12,700.39x = 83,434,147.74
  5. Step 5: Solve for x
    x = 83,434,147.74/12,700.39
  6. Step 6: Final answer
    x = 6,569.42

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1.5x scale

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.