Home / 15,583.60-21,507.40-8,867.92

Finding the Fourth Proportional to 15,583.60, 21,507.40 and 8,867.92

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Solution

The fourth proportional to 15,583.60, 21,507.40 and 8,867.92 is: 12,238.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,583.60 : 21,507.40 = 8,867.92 : x
  2. Step 2: Convert to fraction form
    15,583.60/21,507.40 = 8,867.92/x
  3. Step 3: Cross multiply
    15,583.60x = 21,507.40 × 8,867.92
  4. Step 4: Simplify right side
    15,583.60x = 190,725,902.61
  5. Step 5: Solve for x
    x = 190,725,902.61/15,583.60
  6. Step 6: Final answer
    x = 12,238.89

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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.