Home / 11,155.61-15,394.23-6,119.72

Finding the Fourth Proportional to 11,155.61, 15,394.23 and 6,119.72

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Solution

The fourth proportional to 11,155.61, 15,394.23 and 6,119.72 is: 8,444.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,155.61 : 15,394.23 = 6,119.72 : x
  2. Step 2: Convert to fraction form
    11,155.61/15,394.23 = 6,119.72/x
  3. Step 3: Cross multiply
    11,155.61x = 15,394.23 × 6,119.72
  4. Step 4: Simplify right side
    11,155.61x = 94,208,331.24
  5. Step 5: Solve for x
    x = 94,208,331.24/11,155.61
  6. Step 6: Final answer
    x = 8,444.93

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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.