Home / 15,913.98-21,962.07-8,840.25

Finding the Fourth Proportional to 15,913.98, 21,962.07 and 8,840.25

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Solution

The fourth proportional to 15,913.98, 21,962.07 and 8,840.25 is: 12,199.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,913.98 : 21,962.07 = 8,840.25 : x
  2. Step 2: Convert to fraction form
    15,913.98/21,962.07 = 8,840.25/x
  3. Step 3: Cross multiply
    15,913.98x = 21,962.07 × 8,840.25
  4. Step 4: Simplify right side
    15,913.98x = 194,150,189.32
  5. Step 5: Solve for x
    x = 194,150,189.32/15,913.98
  6. Step 6: Final answer
    x = 12,199.98

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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.