Home / 11,393.17-15,722.35-6,289.17

Finding the Fourth Proportional to 11,393.17, 15,722.35 and 6,289.17

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Solution

The fourth proportional to 11,393.17, 15,722.35 and 6,289.17 is: 8,678.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,393.17 : 15,722.35 = 6,289.17 : x
  2. Step 2: Convert to fraction form
    11,393.17/15,722.35 = 6,289.17/x
  3. Step 3: Cross multiply
    11,393.17x = 15,722.35 × 6,289.17
  4. Step 4: Simplify right side
    11,393.17x = 98,880,531.95
  5. Step 5: Solve for x
    x = 98,880,531.95/11,393.17
  6. Step 6: Final answer
    x = 8,678.93

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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.