Home / 13,911.16-19,199.01-7,943.68

Finding the Fourth Proportional to 13,911.16, 19,199.01 and 7,943.68

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Solution

The fourth proportional to 13,911.16, 19,199.01 and 7,943.68 is: 10,963.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.16 : 19,199.01 = 7,943.68 : x
  2. Step 2: Convert to fraction form
    13,911.16/19,199.01 = 7,943.68/x
  3. Step 3: Cross multiply
    13,911.16x = 19,199.01 × 7,943.68
  4. Step 4: Simplify right side
    13,911.16x = 152,510,791.76
  5. Step 5: Solve for x
    x = 152,510,791.76/13,911.16
  6. Step 6: Final answer
    x = 10,963.20

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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.