Home / 8,685.60-11,986.18-4,706.76

Finding the Fourth Proportional to 8,685.60, 11,986.18 and 4,706.76

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Solution

The fourth proportional to 8,685.60, 11,986.18 and 4,706.76 is: 6,495.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685.60 : 11,986.18 = 4,706.76 : x
  2. Step 2: Convert to fraction form
    8,685.60/11,986.18 = 4,706.76/x
  3. Step 3: Cross multiply
    8,685.60x = 11,986.18 × 4,706.76
  4. Step 4: Simplify right side
    8,685.60x = 56,416,072.58
  5. Step 5: Solve for x
    x = 56,416,072.58/8,685.60
  6. Step 6: Final answer
    x = 6,495.36

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Double scale
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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.