Home / 18,554.15-25,638.68-13,509.62

Finding the Fourth Proportional to 18,554.15, 25,638.68 and 13,509.62

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Solution

The fourth proportional to 18,554.15, 25,638.68 and 13,509.62 is: 18,667.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,554.15 : 25,638.68 = 13,509.62 : x
  2. Step 2: Convert to fraction form
    18,554.15/25,638.68 = 13,509.62/x
  3. Step 3: Cross multiply
    18,554.15x = 25,638.68 × 13,509.62
  4. Step 4: Simplify right side
    18,554.15x = 346,368,628.36
  5. Step 5: Solve for x
    x = 346,368,628.36/18,554.15
  6. Step 6: Final answer
    x = 18,667.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.