Home / 10,980.54-15,152.86-6,135.30

Finding the Fourth Proportional to 10,980.54, 15,152.86 and 6,135.30

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Solution

The fourth proportional to 10,980.54, 15,152.86 and 6,135.30 is: 8,466.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,980.54 : 15,152.86 = 6,135.30 : x
  2. Step 2: Convert to fraction form
    10,980.54/15,152.86 = 6,135.30/x
  3. Step 3: Cross multiply
    10,980.54x = 15,152.86 × 6,135.30
  4. Step 4: Simplify right side
    10,980.54x = 92,967,379.84
  5. Step 5: Solve for x
    x = 92,967,379.84/10,980.54
  6. Step 6: Final answer
    x = 8,466.56

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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.