Home / 15,659.35-21,609.75-8,585.76

Finding the Fourth Proportional to 15,659.35, 21,609.75 and 8,585.76

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Solution

The fourth proportional to 15,659.35, 21,609.75 and 8,585.76 is: 11,848.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,659.35 : 21,609.75 = 8,585.76 : x
  2. Step 2: Convert to fraction form
    15,659.35/21,609.75 = 8,585.76/x
  3. Step 3: Cross multiply
    15,659.35x = 21,609.75 × 8,585.76
  4. Step 4: Simplify right side
    15,659.35x = 185,536,127.16
  5. Step 5: Solve for x
    x = 185,536,127.16/15,659.35
  6. Step 6: Final answer
    x = 11,848.26

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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.