Home / 18,829.04-25,981.20-10,761.28

Finding the Fourth Proportional to 18,829.04, 25,981.20 and 10,761.28

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Solution

The fourth proportional to 18,829.04, 25,981.20 and 10,761.28 is: 14,848.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829.04 : 25,981.20 = 10,761.28 : x
  2. Step 2: Convert to fraction form
    18,829.04/25,981.20 = 10,761.28/x
  3. Step 3: Cross multiply
    18,829.04x = 25,981.20 × 10,761.28
  4. Step 4: Simplify right side
    18,829.04x = 279,590,967.94
  5. Step 5: Solve for x
    x = 279,590,967.94/18,829.04
  6. Step 6: Final answer
    x = 14,848.92

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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.