Home / 13,808.67-19,056.75-8,146.71

Finding the Fourth Proportional to 13,808.67, 19,056.75 and 8,146.71

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Solution

The fourth proportional to 13,808.67, 19,056.75 and 8,146.71 is: 11,242.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,808.67 : 19,056.75 = 8,146.71 : x
  2. Step 2: Convert to fraction form
    13,808.67/19,056.75 = 8,146.71/x
  3. Step 3: Cross multiply
    13,808.67x = 19,056.75 × 8,146.71
  4. Step 4: Simplify right side
    13,808.67x = 155,249,815.79
  5. Step 5: Solve for x
    x = 155,249,815.79/13,808.67
  6. Step 6: Final answer
    x = 11,242.92

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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.