Home / 10,687.89-14,749.26-6,151.08

Finding the Fourth Proportional to 10,687.89, 14,749.26 and 6,151.08

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Solution

The fourth proportional to 10,687.89, 14,749.26 and 6,151.08 is: 8,488.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,687.89 : 14,749.26 = 6,151.08 : x
  2. Step 2: Convert to fraction form
    10,687.89/14,749.26 = 6,151.08/x
  3. Step 3: Cross multiply
    10,687.89x = 14,749.26 × 6,151.08
  4. Step 4: Simplify right side
    10,687.89x = 90,723,878.20
  5. Step 5: Solve for x
    x = 90,723,878.20/10,687.89
  6. Step 6: Final answer
    x = 8,488.47

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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.