Home / 18,521.72-25,533.36-13,207.32

Finding the Fourth Proportional to 18,521.72, 25,533.36 and 13,207.32

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Solution

The fourth proportional to 18,521.72, 25,533.36 and 13,207.32 is: 18,207.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,521.72 : 25,533.36 = 13,207.32 : x
  2. Step 2: Convert to fraction form
    18,521.72/25,533.36 = 13,207.32/x
  3. Step 3: Cross multiply
    18,521.72x = 25,533.36 × 13,207.32
  4. Step 4: Simplify right side
    18,521.72x = 337,227,256.20
  5. Step 5: Solve for x
    x = 337,227,256.20/18,521.72
  6. Step 6: Final answer
    x = 18,207.12

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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.