Home / 15,914.34-21,962.52-8,840.79

Finding the Fourth Proportional to 15,914.34, 21,962.52 and 8,840.79

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Solution

The fourth proportional to 15,914.34, 21,962.52 and 8,840.79 is: 12,200.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,914.34 : 21,962.52 = 8,840.79 : x
  2. Step 2: Convert to fraction form
    15,914.34/21,962.52 = 8,840.79/x
  3. Step 3: Cross multiply
    15,914.34x = 21,962.52 × 8,840.79
  4. Step 4: Simplify right side
    15,914.34x = 194,166,027.19
  5. Step 5: Solve for x
    x = 194,166,027.19/15,914.34
  6. Step 6: Final answer
    x = 12,200.70

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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.