Home / 8,685.95-11,986.62-4,707.03

Finding the Fourth Proportional to 8,685.95, 11,986.62 and 4,707.03

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Solution

The fourth proportional to 8,685.95, 11,986.62 and 4,707.03 is: 6,495.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685.95 : 11,986.62 = 4,707.03 : x
  2. Step 2: Convert to fraction form
    8,685.95/11,986.62 = 4,707.03/x
  3. Step 3: Cross multiply
    8,685.95x = 11,986.62 × 4,707.03
  4. Step 4: Simplify right side
    8,685.95x = 56,421,397.59
  5. Step 5: Solve for x
    x = 56,421,397.59/8,685.95
  6. Step 6: Final answer
    x = 6,495.71

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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.