Home / 18,396-25,389.36-10,948.32

Finding the Fourth Proportional to 18,396, 25,389.36 and 10,948.32

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Solution

The fourth proportional to 18,396, 25,389.36 and 10,948.32 is: 15,110.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,396 : 25,389.36 = 10,948.32 : x
  2. Step 2: Convert to fraction form
    18,396/25,389.36 = 10,948.32/x
  3. Step 3: Cross multiply
    18,396x = 25,389.36 × 10,948.32
  4. Step 4: Simplify right side
    18,396x = 277,970,837.88
  5. Step 5: Solve for x
    x = 277,970,837.88/18,396
  6. Step 6: Final answer
    x = 15,110.40

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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.