Home / 11,154.08-15,392.80-6,118.78

Finding the Fourth Proportional to 11,154.08, 15,392.80 and 6,118.78

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Solution

The fourth proportional to 11,154.08, 15,392.80 and 6,118.78 is: 8,444.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,154.08 : 15,392.80 = 6,118.78 : x
  2. Step 2: Convert to fraction form
    11,154.08/15,392.80 = 6,118.78/x
  3. Step 3: Cross multiply
    11,154.08x = 15,392.80 × 6,118.78
  4. Step 4: Simplify right side
    11,154.08x = 94,185,156.78
  5. Step 5: Solve for x
    x = 94,185,156.78/11,154.08
  6. Step 6: Final answer
    x = 8,444.01

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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.