Home / 11,101.59-15,319.31-6,386.17

Finding the Fourth Proportional to 11,101.59, 15,319.31 and 6,386.17

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Solution

The fourth proportional to 11,101.59, 15,319.31 and 6,386.17 is: 8,812.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,101.59 : 15,319.31 = 6,386.17 : x
  2. Step 2: Convert to fraction form
    11,101.59/15,319.31 = 6,386.17/x
  3. Step 3: Cross multiply
    11,101.59x = 15,319.31 × 6,386.17
  4. Step 4: Simplify right side
    11,101.59x = 97,831,717.94
  5. Step 5: Solve for x
    x = 97,831,717.94/11,101.59
  6. Step 6: Final answer
    x = 8,812.41

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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.