Home / 15,459.58-21,334.22-8,745.06

Finding the Fourth Proportional to 15,459.58, 21,334.22 and 8,745.06

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Solution

The fourth proportional to 15,459.58, 21,334.22 and 8,745.06 is: 12,068.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,459.58 : 21,334.22 = 8,745.06 : x
  2. Step 2: Convert to fraction form
    15,459.58/21,334.22 = 8,745.06/x
  3. Step 3: Cross multiply
    15,459.58x = 21,334.22 × 8,745.06
  4. Step 4: Simplify right side
    15,459.58x = 186,569,033.95
  5. Step 5: Solve for x
    x = 186,569,033.95/15,459.58
  6. Step 6: Final answer
    x = 12,068.18

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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.