Home / 12,064.40-18,090.36-4,272.08

Finding the Fourth Proportional to 12,064.40, 18,090.36 and 4,272.08

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Solution

The fourth proportional to 12,064.40, 18,090.36 and 4,272.08 is: 6,405.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,064.40 : 18,090.36 = 4,272.08 : x
  2. Step 2: Convert to fraction form
    12,064.40/18,090.36 = 4,272.08/x
  3. Step 3: Cross multiply
    12,064.40x = 18,090.36 × 4,272.08
  4. Step 4: Simplify right side
    12,064.40x = 77,283,465.15
  5. Step 5: Solve for x
    x = 77,283,465.15/12,064.40
  6. Step 6: Final answer
    x = 6,405.91

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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.