Home / 8,685.36-11,985.75-4,706.37

Finding the Fourth Proportional to 8,685.36, 11,985.75 and 4,706.37

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Solution

The fourth proportional to 8,685.36, 11,985.75 and 4,706.37 is: 6,494.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685.36 : 11,985.75 = 4,706.37 : x
  2. Step 2: Convert to fraction form
    8,685.36/11,985.75 = 4,706.37/x
  3. Step 3: Cross multiply
    8,685.36x = 11,985.75 × 4,706.37
  4. Step 4: Simplify right side
    8,685.36x = 56,409,374.23
  5. Step 5: Solve for x
    x = 56,409,374.23/8,685.36
  6. Step 6: Final answer
    x = 6,494.77

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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.