Home / 15,659.32-21,609.72-8,585.60

Finding the Fourth Proportional to 15,659.32, 21,609.72 and 8,585.60

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Solution

The fourth proportional to 15,659.32, 21,609.72 and 8,585.60 is: 11,848.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,659.32 : 21,609.72 = 8,585.60 : x
  2. Step 2: Convert to fraction form
    15,659.32/21,609.72 = 8,585.60/x
  3. Step 3: Cross multiply
    15,659.32x = 21,609.72 × 8,585.60
  4. Step 4: Simplify right side
    15,659.32x = 185,532,412.03
  5. Step 5: Solve for x
    x = 185,532,412.03/15,659.32
  6. Step 6: Final answer
    x = 11,848.05

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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.