Home / 15,622.60-21,559.26-8,549

Finding the Fourth Proportional to 15,622.60, 21,559.26 and 8,549

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Solution

The fourth proportional to 15,622.60, 21,559.26 and 8,549 is: 11,797.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,622.60 : 21,559.26 = 8,549 : x
  2. Step 2: Convert to fraction form
    15,622.60/21,559.26 = 8,549/x
  3. Step 3: Cross multiply
    15,622.60x = 21,559.26 × 8,549
  4. Step 4: Simplify right side
    15,622.60x = 184,310,113.74
  5. Step 5: Solve for x
    x = 184,310,113.74/15,622.60
  6. Step 6: Final answer
    x = 11,797.66

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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.