Home / 13,859.04-19,127.20-9,153.12

Finding the Fourth Proportional to 13,859.04, 19,127.20 and 9,153.12

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Solution

The fourth proportional to 13,859.04, 19,127.20 and 9,153.12 is: 12,632.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,859.04 : 19,127.20 = 9,153.12 : x
  2. Step 2: Convert to fraction form
    13,859.04/19,127.20 = 9,153.12/x
  3. Step 3: Cross multiply
    13,859.04x = 19,127.20 × 9,153.12
  4. Step 4: Simplify right side
    13,859.04x = 175,073,556.86
  5. Step 5: Solve for x
    x = 175,073,556.86/13,859.04
  6. Step 6: Final answer
    x = 12,632.44

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Double scale
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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.