Home / 15,622.98-21,559.70-8,549.40

Finding the Fourth Proportional to 15,622.98, 21,559.70 and 8,549.40

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Solution

The fourth proportional to 15,622.98, 21,559.70 and 8,549.40 is: 11,798.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,622.98 : 21,559.70 = 8,549.40 : x
  2. Step 2: Convert to fraction form
    15,622.98/21,559.70 = 8,549.40/x
  3. Step 3: Cross multiply
    15,622.98x = 21,559.70 × 8,549.40
  4. Step 4: Simplify right side
    15,622.98x = 184,322,456.43
  5. Step 5: Solve for x
    x = 184,322,456.43/15,622.98
  6. Step 6: Final answer
    x = 11,798.16

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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.