Home / 10,118.74-13,955.61-8,497.39

Finding the Fourth Proportional to 10,118.74, 13,955.61 and 8,497.39

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Solution

The fourth proportional to 10,118.74, 13,955.61 and 8,497.39 is: 11,719.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,118.74 : 13,955.61 = 8,497.39 : x
  2. Step 2: Convert to fraction form
    10,118.74/13,955.61 = 8,497.39/x
  3. Step 3: Cross multiply
    10,118.74x = 13,955.61 × 8,497.39
  4. Step 4: Simplify right side
    10,118.74x = 118,586,260.86
  5. Step 5: Solve for x
    x = 118,586,260.86/10,118.74
  6. Step 6: Final answer
    x = 11,719.47

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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.