Home / 8,685.23-11,985.57-4,706.30

Finding the Fourth Proportional to 8,685.23, 11,985.57 and 4,706.30

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Solution

The fourth proportional to 8,685.23, 11,985.57 and 4,706.30 is: 6,494.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685.23 : 11,985.57 = 4,706.30 : x
  2. Step 2: Convert to fraction form
    8,685.23/11,985.57 = 4,706.30/x
  3. Step 3: Cross multiply
    8,685.23x = 11,985.57 × 4,706.30
  4. Step 4: Simplify right side
    8,685.23x = 56,407,718.05
  5. Step 5: Solve for x
    x = 56,407,718.05/8,685.23
  6. Step 6: Final answer
    x = 6,494.68

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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.