Home / 12,598.04-18,899.36-5,198.40

Finding the Fourth Proportional to 12,598.04, 18,899.36 and 5,198.40

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Solution

The fourth proportional to 12,598.04, 18,899.36 and 5,198.40 is: 7,798.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,598.04 : 18,899.36 = 5,198.40 : x
  2. Step 2: Convert to fraction form
    12,598.04/18,899.36 = 5,198.40/x
  3. Step 3: Cross multiply
    12,598.04x = 18,899.36 × 5,198.40
  4. Step 4: Simplify right side
    12,598.04x = 98,246,433.02
  5. Step 5: Solve for x
    x = 98,246,433.02/12,598.04
  6. Step 6: Final answer
    x = 7,798.55

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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.