Home / 8,858.40-13,280.56-4,477.60

Finding the Fourth Proportional to 8,858.40, 13,280.56 and 4,477.60

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Solution

The fourth proportional to 8,858.40, 13,280.56 and 4,477.60 is: 6,712.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.40 : 13,280.56 = 4,477.60 : x
  2. Step 2: Convert to fraction form
    8,858.40/13,280.56 = 4,477.60/x
  3. Step 3: Cross multiply
    8,858.40x = 13,280.56 × 4,477.60
  4. Step 4: Simplify right side
    8,858.40x = 59,465,035.46
  5. Step 5: Solve for x
    x = 59,465,035.46/8,858.40
  6. Step 6: Final answer
    x = 6,712.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.