Home / 12,329.43-18,507.31-5,312.91

Finding the Fourth Proportional to 12,329.43, 18,507.31 and 5,312.91

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Solution

The fourth proportional to 12,329.43, 18,507.31 and 5,312.91 is: 7,975.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,329.43 : 18,507.31 = 5,312.91 : x
  2. Step 2: Convert to fraction form
    12,329.43/18,507.31 = 5,312.91/x
  3. Step 3: Cross multiply
    12,329.43x = 18,507.31 × 5,312.91
  4. Step 4: Simplify right side
    12,329.43x = 98,327,579.84
  5. Step 5: Solve for x
    x = 98,327,579.84/12,329.43
  6. Step 6: Final answer
    x = 7,975.03

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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.