Home / 16,915.60-23,342.70-9,840.88

Finding the Fourth Proportional to 16,915.60, 23,342.70 and 9,840.88

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Solution

The fourth proportional to 16,915.60, 23,342.70 and 9,840.88 is: 13,579.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,915.60 : 23,342.70 = 9,840.88 : x
  2. Step 2: Convert to fraction form
    16,915.60/23,342.70 = 9,840.88/x
  3. Step 3: Cross multiply
    16,915.60x = 23,342.70 × 9,840.88
  4. Step 4: Simplify right side
    16,915.60x = 229,712,709.58
  5. Step 5: Solve for x
    x = 229,712,709.58/16,915.60
  6. Step 6: Final answer
    x = 13,579.93

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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.