Home / 14,579.40-21,840.30-8,718.60

Finding the Fourth Proportional to 14,579.40, 21,840.30 and 8,718.60

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Solution

The fourth proportional to 14,579.40, 21,840.30 and 8,718.60 is: 13,060.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,579.40 : 21,840.30 = 8,718.60 : x
  2. Step 2: Convert to fraction form
    14,579.40/21,840.30 = 8,718.60/x
  3. Step 3: Cross multiply
    14,579.40x = 21,840.30 × 8,718.60
  4. Step 4: Simplify right side
    14,579.40x = 190,416,839.58
  5. Step 5: Solve for x
    x = 190,416,839.58/14,579.40
  6. Step 6: Final answer
    x = 13,060.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.