Home / 13,653.06-18,840.88-8,937.24

Finding the Fourth Proportional to 13,653.06, 18,840.88 and 8,937.24

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Solution

The fourth proportional to 13,653.06, 18,840.88 and 8,937.24 is: 12,333.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,653.06 : 18,840.88 = 8,937.24 : x
  2. Step 2: Convert to fraction form
    13,653.06/18,840.88 = 8,937.24/x
  3. Step 3: Cross multiply
    13,653.06x = 18,840.88 × 8,937.24
  4. Step 4: Simplify right side
    13,653.06x = 168,385,466.37
  5. Step 5: Solve for x
    x = 168,385,466.37/13,653.06
  6. Step 6: Final answer
    x = 12,333.17

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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.