Home / 11,345.68-17,014.80-4,770.64

Finding the Fourth Proportional to 11,345.68, 17,014.80 and 4,770.64

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Solution

The fourth proportional to 11,345.68, 17,014.80 and 4,770.64 is: 7,154.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.68 : 17,014.80 = 4,770.64 : x
  2. Step 2: Convert to fraction form
    11,345.68/17,014.80 = 4,770.64/x
  3. Step 3: Cross multiply
    11,345.68x = 17,014.80 × 4,770.64
  4. Step 4: Simplify right side
    11,345.68x = 81,171,485.47
  5. Step 5: Solve for x
    x = 81,171,485.47/11,345.68
  6. Step 6: Final answer
    x = 7,154.40

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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.