Home / 13,358.08-18,433.78-7,389.55

Finding the Fourth Proportional to 13,358.08, 18,433.78 and 7,389.55

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Solution

The fourth proportional to 13,358.08, 18,433.78 and 7,389.55 is: 10,197.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358.08 : 18,433.78 = 7,389.55 : x
  2. Step 2: Convert to fraction form
    13,358.08/18,433.78 = 7,389.55/x
  3. Step 3: Cross multiply
    13,358.08x = 18,433.78 × 7,389.55
  4. Step 4: Simplify right side
    13,358.08x = 136,217,339.00
  5. Step 5: Solve for x
    x = 136,217,339.00/13,358.08
  6. Step 6: Final answer
    x = 10,197.37

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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.