Home / 13,464.20-18,583.70-8,740.28

Finding the Fourth Proportional to 13,464.20, 18,583.70 and 8,740.28

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Solution

The fourth proportional to 13,464.20, 18,583.70 and 8,740.28 is: 12,063.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,464.20 : 18,583.70 = 8,740.28 : x
  2. Step 2: Convert to fraction form
    13,464.20/18,583.70 = 8,740.28/x
  3. Step 3: Cross multiply
    13,464.20x = 18,583.70 × 8,740.28
  4. Step 4: Simplify right side
    13,464.20x = 162,426,744.19
  5. Step 5: Solve for x
    x = 162,426,744.19/13,464.20
  6. Step 6: Final answer
    x = 12,063.60

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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.