Home / 12,057.40-18,063.24-7,112.32

Finding the Fourth Proportional to 12,057.40, 18,063.24 and 7,112.32

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Solution

The fourth proportional to 12,057.40, 18,063.24 and 7,112.32 is: 10,655.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,057.40 : 18,063.24 = 7,112.32 : x
  2. Step 2: Convert to fraction form
    12,057.40/18,063.24 = 7,112.32/x
  3. Step 3: Cross multiply
    12,057.40x = 18,063.24 × 7,112.32
  4. Step 4: Simplify right side
    12,057.40x = 128,471,543.12
  5. Step 5: Solve for x
    x = 128,471,543.12/12,057.40
  6. Step 6: Final answer
    x = 10,655.00

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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.