Home / 15,586.62-21,509.41-8,513.04

Finding the Fourth Proportional to 15,586.62, 21,509.41 and 8,513.04

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Solution

The fourth proportional to 15,586.62, 21,509.41 and 8,513.04 is: 11,747.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,586.62 : 21,509.41 = 8,513.04 : x
  2. Step 2: Convert to fraction form
    15,586.62/21,509.41 = 8,513.04/x
  3. Step 3: Cross multiply
    15,586.62x = 21,509.41 × 8,513.04
  4. Step 4: Simplify right side
    15,586.62x = 183,110,467.71
  5. Step 5: Solve for x
    x = 183,110,467.71/15,586.62
  6. Step 6: Final answer
    x = 11,747.93

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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.