Home / 15,659.36-21,609.88-8,586.24

Finding the Fourth Proportional to 15,659.36, 21,609.88 and 8,586.24

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Solution

The fourth proportional to 15,659.36, 21,609.88 and 8,586.24 is: 11,848.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,659.36 : 21,609.88 = 8,586.24 : x
  2. Step 2: Convert to fraction form
    15,659.36/21,609.88 = 8,586.24/x
  3. Step 3: Cross multiply
    15,659.36x = 21,609.88 × 8,586.24
  4. Step 4: Simplify right side
    15,659.36x = 185,547,616.05
  5. Step 5: Solve for x
    x = 185,547,616.05/15,659.36
  6. Step 6: Final answer
    x = 11,848.99

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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.