Home / 10,749.79-16,130.91-4,509.25

Finding the Fourth Proportional to 10,749.79, 16,130.91 and 4,509.25

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Solution

The fourth proportional to 10,749.79, 16,130.91 and 4,509.25 is: 6,766.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,749.79 : 16,130.91 = 4,509.25 : x
  2. Step 2: Convert to fraction form
    10,749.79/16,130.91 = 4,509.25/x
  3. Step 3: Cross multiply
    10,749.79x = 16,130.91 × 4,509.25
  4. Step 4: Simplify right side
    10,749.79x = 72,738,305.92
  5. Step 5: Solve for x
    x = 72,738,305.92/10,749.79
  6. Step 6: Final answer
    x = 6,766.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.