Home / 15,659.16-21,609.63-8,585.70

Finding the Fourth Proportional to 15,659.16, 21,609.63 and 8,585.70

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Solution

The fourth proportional to 15,659.16, 21,609.63 and 8,585.70 is: 11,848.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,659.16 : 21,609.63 = 8,585.70 : x
  2. Step 2: Convert to fraction form
    15,659.16/21,609.63 = 8,585.70/x
  3. Step 3: Cross multiply
    15,659.16x = 21,609.63 × 8,585.70
  4. Step 4: Simplify right side
    15,659.16x = 185,533,800.29
  5. Step 5: Solve for x
    x = 185,533,800.29/15,659.16
  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.