Home / 8,686.67-11,987.54-4,707.77

Finding the Fourth Proportional to 8,686.67, 11,987.54 and 4,707.77

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Solution

The fourth proportional to 8,686.67, 11,987.54 and 4,707.77 is: 6,496.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,686.67 : 11,987.54 = 4,707.77 : x
  2. Step 2: Convert to fraction form
    8,686.67/11,987.54 = 4,707.77/x
  3. Step 3: Cross multiply
    8,686.67x = 11,987.54 × 4,707.77
  4. Step 4: Simplify right side
    8,686.67x = 56,434,497.71
  5. Step 5: Solve for x
    x = 56,434,497.71/8,686.67
  6. Step 6: Final answer
    x = 6,496.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.