Home / 12,983.40-19,485.18-5,197.32

Finding the Fourth Proportional to 12,983.40, 19,485.18 and 5,197.32

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Solution

The fourth proportional to 12,983.40, 19,485.18 and 5,197.32 is: 7,800.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,983.40 : 19,485.18 = 5,197.32 : x
  2. Step 2: Convert to fraction form
    12,983.40/19,485.18 = 5,197.32/x
  3. Step 3: Cross multiply
    12,983.40x = 19,485.18 × 5,197.32
  4. Step 4: Simplify right side
    12,983.40x = 101,270,715.72
  5. Step 5: Solve for x
    x = 101,270,715.72/12,983.40
  6. Step 6: Final answer
    x = 7,800.02

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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.