Home / 11,152.57-15,390.72-6,117.25

Finding the Fourth Proportional to 11,152.57, 15,390.72 and 6,117.25

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Solution

The fourth proportional to 11,152.57, 15,390.72 and 6,117.25 is: 8,441.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,152.57 : 15,390.72 = 6,117.25 : x
  2. Step 2: Convert to fraction form
    11,152.57/15,390.72 = 6,117.25/x
  3. Step 3: Cross multiply
    11,152.57x = 15,390.72 × 6,117.25
  4. Step 4: Simplify right side
    11,152.57x = 94,148,881.92
  5. Step 5: Solve for x
    x = 94,148,881.92/11,152.57
  6. Step 6: Final answer
    x = 8,441.90

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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.