Home / 15,630.60-21,570.27-8,556.87

Finding the Fourth Proportional to 15,630.60, 21,570.27 and 8,556.87

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Solution

The fourth proportional to 15,630.60, 21,570.27 and 8,556.87 is: 11,808.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,630.60 : 21,570.27 = 8,556.87 : x
  2. Step 2: Convert to fraction form
    15,630.60/21,570.27 = 8,556.87/x
  3. Step 3: Cross multiply
    15,630.60x = 21,570.27 × 8,556.87
  4. Step 4: Simplify right side
    15,630.60x = 184,573,996.25
  5. Step 5: Solve for x
    x = 184,573,996.25/15,630.60
  6. Step 6: Final answer
    x = 11,808.50

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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.