Home / 12,709.23-19,066.39-4,389.55

Finding the Fourth Proportional to 12,709.23, 19,066.39 and 4,389.55

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Solution

The fourth proportional to 12,709.23, 19,066.39 and 4,389.55 is: 6,585.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,709.23 : 19,066.39 = 4,389.55 : x
  2. Step 2: Convert to fraction form
    12,709.23/19,066.39 = 4,389.55/x
  3. Step 3: Cross multiply
    12,709.23x = 19,066.39 × 4,389.55
  4. Step 4: Simplify right side
    12,709.23x = 83,692,872.22
  5. Step 5: Solve for x
    x = 83,692,872.22/12,709.23
  6. Step 6: Final answer
    x = 6,585.20

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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.