Home / 13,076.28-18,045.23-7,107.84

Finding the Fourth Proportional to 13,076.28, 18,045.23 and 7,107.84

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Solution

The fourth proportional to 13,076.28, 18,045.23 and 7,107.84 is: 9,808.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,076.28 : 18,045.23 = 7,107.84 : x
  2. Step 2: Convert to fraction form
    13,076.28/18,045.23 = 7,107.84/x
  3. Step 3: Cross multiply
    13,076.28x = 18,045.23 × 7,107.84
  4. Step 4: Simplify right side
    13,076.28x = 128,262,572.06
  5. Step 5: Solve for x
    x = 128,262,572.06/13,076.28
  6. Step 6: Final answer
    x = 9,808.80

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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.