Home / 11,155.29-15,393.63-6,118.50

Finding the Fourth Proportional to 11,155.29, 15,393.63 and 6,118.50

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Solution

The fourth proportional to 11,155.29, 15,393.63 and 6,118.50 is: 8,443.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,155.29 : 15,393.63 = 6,118.50 : x
  2. Step 2: Convert to fraction form
    11,155.29/15,393.63 = 6,118.50/x
  3. Step 3: Cross multiply
    11,155.29x = 15,393.63 × 6,118.50
  4. Step 4: Simplify right side
    11,155.29x = 94,185,925.16
  5. Step 5: Solve for x
    x = 94,185,925.16/11,155.29
  6. Step 6: Final answer
    x = 8,443.16

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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.