Home / 12,765.36-19,137.69-5,740.23

Finding the Fourth Proportional to 12,765.36, 19,137.69 and 5,740.23

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Solution

The fourth proportional to 12,765.36, 19,137.69 and 5,740.23 is: 8,605.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,765.36 : 19,137.69 = 5,740.23 : x
  2. Step 2: Convert to fraction form
    12,765.36/19,137.69 = 5,740.23/x
  3. Step 3: Cross multiply
    12,765.36x = 19,137.69 × 5,740.23
  4. Step 4: Simplify right side
    12,765.36x = 109,854,742.27
  5. Step 5: Solve for x
    x = 109,854,742.27/12,765.36
  6. Step 6: Final answer
    x = 8,605.69

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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.