Home / 8,860.69-13,272.81-6,400.45

Finding the Fourth Proportional to 8,860.69, 13,272.81 and 6,400.45

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Solution

The fourth proportional to 8,860.69, 13,272.81 and 6,400.45 is: 9,587.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,860.69 : 13,272.81 = 6,400.45 : x
  2. Step 2: Convert to fraction form
    8,860.69/13,272.81 = 6,400.45/x
  3. Step 3: Cross multiply
    8,860.69x = 13,272.81 × 6,400.45
  4. Step 4: Simplify right side
    8,860.69x = 84,951,956.76
  5. Step 5: Solve for x
    x = 84,951,956.76/8,860.69
  6. Step 6: Final answer
    x = 9,587.51

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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.