Home / 8,686.18-11,986.98-4,707.36

Finding the Fourth Proportional to 8,686.18, 11,986.98 and 4,707.36

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Solution

The fourth proportional to 8,686.18, 11,986.98 and 4,707.36 is: 6,496.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,686.18 : 11,986.98 = 4,707.36 : x
  2. Step 2: Convert to fraction form
    8,686.18/11,986.98 = 4,707.36/x
  3. Step 3: Cross multiply
    8,686.18x = 11,986.98 × 4,707.36
  4. Step 4: Simplify right side
    8,686.18x = 56,427,030.17
  5. Step 5: Solve for x
    x = 56,427,030.17/8,686.18
  6. Step 6: Final answer
    x = 6,496.18

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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.