Home / 8,686.23-11,986.95-4,707.30

Finding the Fourth Proportional to 8,686.23, 11,986.95 and 4,707.30

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Solution

The fourth proportional to 8,686.23, 11,986.95 and 4,707.30 is: 6,496.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,686.23 : 11,986.95 = 4,707.30 : x
  2. Step 2: Convert to fraction form
    8,686.23/11,986.95 = 4,707.30/x
  3. Step 3: Cross multiply
    8,686.23x = 11,986.95 × 4,707.30
  4. Step 4: Simplify right side
    8,686.23x = 56,426,169.74
  5. Step 5: Solve for x
    x = 56,426,169.74/8,686.23
  6. Step 6: Final answer
    x = 6,496.05

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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.