Home / 13,504.19-18,630.57-8,459.61

Finding the Fourth Proportional to 13,504.19, 18,630.57 and 8,459.61

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Solution

The fourth proportional to 13,504.19, 18,630.57 and 8,459.61 is: 11,671.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,504.19 : 18,630.57 = 8,459.61 : x
  2. Step 2: Convert to fraction form
    13,504.19/18,630.57 = 8,459.61/x
  3. Step 3: Cross multiply
    13,504.19x = 18,630.57 × 8,459.61
  4. Step 4: Simplify right side
    13,504.19x = 157,607,356.28
  5. Step 5: Solve for x
    x = 157,607,356.28/13,504.19
  6. Step 6: Final answer
    x = 11,671.00

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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.