Home / 13,357.25-18,433.13-7,389.32

Finding the Fourth Proportional to 13,357.25, 18,433.13 and 7,389.32

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Solution

The fourth proportional to 13,357.25, 18,433.13 and 7,389.32 is: 10,197.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,357.25 : 18,433.13 = 7,389.32 : x
  2. Step 2: Convert to fraction form
    13,357.25/18,433.13 = 7,389.32/x
  3. Step 3: Cross multiply
    13,357.25x = 18,433.13 × 7,389.32
  4. Step 4: Simplify right side
    13,357.25x = 136,208,167.06
  5. Step 5: Solve for x
    x = 136,208,167.06/13,357.25
  6. Step 6: Final answer
    x = 10,197.32

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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.