Home / 10,615.12-14,650.64-6,141.49

Finding the Fourth Proportional to 10,615.12, 14,650.64 and 6,141.49

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Solution

The fourth proportional to 10,615.12, 14,650.64 and 6,141.49 is: 8,476.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,615.12 : 14,650.64 = 6,141.49 : x
  2. Step 2: Convert to fraction form
    10,615.12/14,650.64 = 6,141.49/x
  3. Step 3: Cross multiply
    10,615.12x = 14,650.64 × 6,141.49
  4. Step 4: Simplify right side
    10,615.12x = 89,976,746.66
  5. Step 5: Solve for x
    x = 89,976,746.66/10,615.12
  6. Step 6: Final answer
    x = 8,476.28

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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.