Home / 10,718.47-14,798.06-8,489.35

Finding the Fourth Proportional to 10,718.47, 14,798.06 and 8,489.35

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Solution

The fourth proportional to 10,718.47, 14,798.06 and 8,489.35 is: 11,720.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,718.47 : 14,798.06 = 8,489.35 : x
  2. Step 2: Convert to fraction form
    10,718.47/14,798.06 = 8,489.35/x
  3. Step 3: Cross multiply
    10,718.47x = 14,798.06 × 8,489.35
  4. Step 4: Simplify right side
    10,718.47x = 125,625,910.66
  5. Step 5: Solve for x
    x = 125,625,910.66/10,718.47
  6. Step 6: Final answer
    x = 11,720.51

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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.