Home / 8,685.18-11,985.60-4,706.36

Finding the Fourth Proportional to 8,685.18, 11,985.60 and 4,706.36

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Solution

The fourth proportional to 8,685.18, 11,985.60 and 4,706.36 is: 6,494.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685.18 : 11,985.60 = 4,706.36 : x
  2. Step 2: Convert to fraction form
    8,685.18/11,985.60 = 4,706.36/x
  3. Step 3: Cross multiply
    8,685.18x = 11,985.60 × 4,706.36
  4. Step 4: Simplify right side
    8,685.18x = 56,408,548.42
  5. Step 5: Solve for x
    x = 56,408,548.42/8,685.18
  6. Step 6: Final answer
    x = 6,494.80

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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.