Home / 10,135.18-13,986.41-5,659.01

Finding the Fourth Proportional to 10,135.18, 13,986.41 and 5,659.01

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Solution

The fourth proportional to 10,135.18, 13,986.41 and 5,659.01 is: 7,809.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,135.18 : 13,986.41 = 5,659.01 : x
  2. Step 2: Convert to fraction form
    10,135.18/13,986.41 = 5,659.01/x
  3. Step 3: Cross multiply
    10,135.18x = 13,986.41 × 5,659.01
  4. Step 4: Simplify right side
    10,135.18x = 79,149,178.27
  5. Step 5: Solve for x
    x = 79,149,178.27/10,135.18
  6. Step 6: Final answer
    x = 7,809.35

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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.