Home / 13,518.23-18,653.90-8,738.28

Finding the Fourth Proportional to 13,518.23, 18,653.90 and 8,738.28

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Solution

The fourth proportional to 13,518.23, 18,653.90 and 8,738.28 is: 12,058.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.23 : 18,653.90 = 8,738.28 : x
  2. Step 2: Convert to fraction form
    13,518.23/18,653.90 = 8,738.28/x
  3. Step 3: Cross multiply
    13,518.23x = 18,653.90 × 8,738.28
  4. Step 4: Simplify right side
    13,518.23x = 163,002,957.60
  5. Step 5: Solve for x
    x = 163,002,957.60/13,518.23
  6. Step 6: Final answer
    x = 12,058.01

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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.