Home / 13,376.32-20,066.40-4,140.16

Finding the Fourth Proportional to 13,376.32, 20,066.40 and 4,140.16

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Solution

The fourth proportional to 13,376.32, 20,066.40 and 4,140.16 is: 6,210.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,376.32 : 20,066.40 = 4,140.16 : x
  2. Step 2: Convert to fraction form
    13,376.32/20,066.40 = 4,140.16/x
  3. Step 3: Cross multiply
    13,376.32x = 20,066.40 × 4,140.16
  4. Step 4: Simplify right side
    13,376.32x = 83,078,106.62
  5. Step 5: Solve for x
    x = 83,078,106.62/13,376.32
  6. Step 6: Final answer
    x = 6,210.83

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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.