Home / 10,771.79-14,868.87-9,102.07

Finding the Fourth Proportional to 10,771.79, 14,868.87 and 9,102.07

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Solution

The fourth proportional to 10,771.79, 14,868.87 and 9,102.07 is: 12,564.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,771.79 : 14,868.87 = 9,102.07 : x
  2. Step 2: Convert to fraction form
    10,771.79/14,868.87 = 9,102.07/x
  3. Step 3: Cross multiply
    10,771.79x = 14,868.87 × 9,102.07
  4. Step 4: Simplify right side
    10,771.79x = 135,337,480.01
  5. Step 5: Solve for x
    x = 135,337,480.01/10,771.79
  6. Step 6: Final answer
    x = 12,564.07

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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.