Home / 13,358.64-18,433.50-7,389.36

Finding the Fourth Proportional to 13,358.64, 18,433.50 and 7,389.36

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Solution

The fourth proportional to 13,358.64, 18,433.50 and 7,389.36 is: 10,196.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358.64 : 18,433.50 = 7,389.36 : x
  2. Step 2: Convert to fraction form
    13,358.64/18,433.50 = 7,389.36/x
  3. Step 3: Cross multiply
    13,358.64x = 18,433.50 × 7,389.36
  4. Step 4: Simplify right side
    13,358.64x = 136,211,767.56
  5. Step 5: Solve for x
    x = 136,211,767.56/13,358.64
  6. Step 6: Final answer
    x = 10,196.53

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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.