Home / 10,860.17-14,989.58-7,076.79

Finding the Fourth Proportional to 10,860.17, 14,989.58 and 7,076.79

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Solution

The fourth proportional to 10,860.17, 14,989.58 and 7,076.79 is: 9,767.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,860.17 : 14,989.58 = 7,076.79 : x
  2. Step 2: Convert to fraction form
    10,860.17/14,989.58 = 7,076.79/x
  3. Step 3: Cross multiply
    10,860.17x = 14,989.58 × 7,076.79
  4. Step 4: Simplify right side
    10,860.17x = 106,078,074.46
  5. Step 5: Solve for x
    x = 106,078,074.46/10,860.17
  6. Step 6: Final answer
    x = 9,767.63

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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.