Home / 11,386.64-17,064.80-6,453.20

Finding the Fourth Proportional to 11,386.64, 17,064.80 and 6,453.20

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Solution

The fourth proportional to 11,386.64, 17,064.80 and 6,453.20 is: 9,671.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,386.64 : 17,064.80 = 6,453.20 : x
  2. Step 2: Convert to fraction form
    11,386.64/17,064.80 = 6,453.20/x
  3. Step 3: Cross multiply
    11,386.64x = 17,064.80 × 6,453.20
  4. Step 4: Simplify right side
    11,386.64x = 110,122,567.36
  5. Step 5: Solve for x
    x = 110,122,567.36/11,386.64
  6. Step 6: Final answer
    x = 9,671.21

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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.