Home / 13,812.16-19,061.04-8,226.40

Finding the Fourth Proportional to 13,812.16, 19,061.04 and 8,226.40

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Solution

The fourth proportional to 13,812.16, 19,061.04 and 8,226.40 is: 11,352.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,812.16 : 19,061.04 = 8,226.40 : x
  2. Step 2: Convert to fraction form
    13,812.16/19,061.04 = 8,226.40/x
  3. Step 3: Cross multiply
    13,812.16x = 19,061.04 × 8,226.40
  4. Step 4: Simplify right side
    13,812.16x = 156,803,739.46
  5. Step 5: Solve for x
    x = 156,803,739.46/13,812.16
  6. Step 6: Final answer
    x = 11,352.59

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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.