Home / 11,152.55-15,387.80-6,436.82

Finding the Fourth Proportional to 11,152.55, 15,387.80 and 6,436.82

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Solution

The fourth proportional to 11,152.55, 15,387.80 and 6,436.82 is: 8,881.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,152.55 : 15,387.80 = 6,436.82 : x
  2. Step 2: Convert to fraction form
    11,152.55/15,387.80 = 6,436.82/x
  3. Step 3: Cross multiply
    11,152.55x = 15,387.80 × 6,436.82
  4. Step 4: Simplify right side
    11,152.55x = 99,048,389.67
  5. Step 5: Solve for x
    x = 99,048,389.67/11,152.55
  6. Step 6: Final answer
    x = 8,881.24

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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.