Home / 8,835.68-12,188.60-5,477.40

Finding the Fourth Proportional to 8,835.68, 12,188.60 and 5,477.40

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Solution

The fourth proportional to 8,835.68, 12,188.60 and 5,477.40 is: 7,555.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,835.68 : 12,188.60 = 5,477.40 : x
  2. Step 2: Convert to fraction form
    8,835.68/12,188.60 = 5,477.40/x
  3. Step 3: Cross multiply
    8,835.68x = 12,188.60 × 5,477.40
  4. Step 4: Simplify right side
    8,835.68x = 66,761,837.64
  5. Step 5: Solve for x
    x = 66,761,837.64/8,835.68
  6. Step 6: Final answer
    x = 7,555.94

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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.