Home / 18,565.10-25,586.34-13,521.32

Finding the Fourth Proportional to 18,565.10, 25,586.34 and 13,521.32

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Solution

The fourth proportional to 18,565.10, 25,586.34 and 13,521.32 is: 18,635.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,565.10 : 25,586.34 = 13,521.32 : x
  2. Step 2: Convert to fraction form
    18,565.10/25,586.34 = 13,521.32/x
  3. Step 3: Cross multiply
    18,565.10x = 25,586.34 × 13,521.32
  4. Step 4: Simplify right side
    18,565.10x = 345,961,090.77
  5. Step 5: Solve for x
    x = 345,961,090.77/18,565.10
  6. Step 6: Final answer
    x = 18,635.02

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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.