Home / 11,285.80-16,931.40-5,437.60

Finding the Fourth Proportional to 11,285.80, 16,931.40 and 5,437.60

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Solution

The fourth proportional to 11,285.80, 16,931.40 and 5,437.60 is: 8,157.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,285.80 : 16,931.40 = 5,437.60 : x
  2. Step 2: Convert to fraction form
    11,285.80/16,931.40 = 5,437.60/x
  3. Step 3: Cross multiply
    11,285.80x = 16,931.40 × 5,437.60
  4. Step 4: Simplify right side
    11,285.80x = 92,066,180.64
  5. Step 5: Solve for x
    x = 92,066,180.64/11,285.80
  6. Step 6: Final answer
    x = 8,157.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.