Home / 11,339.84-15,649.30-6,864.40

Finding the Fourth Proportional to 11,339.84, 15,649.30 and 6,864.40

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Solution

The fourth proportional to 11,339.84, 15,649.30 and 6,864.40 is: 9,473.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,339.84 : 15,649.30 = 6,864.40 : x
  2. Step 2: Convert to fraction form
    11,339.84/15,649.30 = 6,864.40/x
  3. Step 3: Cross multiply
    11,339.84x = 15,649.30 × 6,864.40
  4. Step 4: Simplify right side
    11,339.84x = 107,423,054.92
  5. Step 5: Solve for x
    x = 107,423,054.92/11,339.84
  6. Step 6: Final answer
    x = 9,473.07

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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.