Home / 10,151.28-14,012.64-6,615.36

Finding the Fourth Proportional to 10,151.28, 14,012.64 and 6,615.36

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Solution

The fourth proportional to 10,151.28, 14,012.64 and 6,615.36 is: 9,131.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,151.28 : 14,012.64 = 6,615.36 : x
  2. Step 2: Convert to fraction form
    10,151.28/14,012.64 = 6,615.36/x
  3. Step 3: Cross multiply
    10,151.28x = 14,012.64 × 6,615.36
  4. Step 4: Simplify right side
    10,151.28x = 92,698,658.15
  5. Step 5: Solve for x
    x = 92,698,658.15/10,151.28
  6. Step 6: Final answer
    x = 9,131.72

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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.