Home / 13,816.16-19,066.56-8,230.40

Finding the Fourth Proportional to 13,816.16, 19,066.56 and 8,230.40

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Solution

The fourth proportional to 13,816.16, 19,066.56 and 8,230.40 is: 11,358.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.16 : 19,066.56 = 8,230.40 : x
  2. Step 2: Convert to fraction form
    13,816.16/19,066.56 = 8,230.40/x
  3. Step 3: Cross multiply
    13,816.16x = 19,066.56 × 8,230.40
  4. Step 4: Simplify right side
    13,816.16x = 156,925,415.42
  5. Step 5: Solve for x
    x = 156,925,415.42/13,816.16
  6. Step 6: Final answer
    x = 11,358.11

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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.