Home / 15,586.80-21,509.44-8,513.25

Finding the Fourth Proportional to 15,586.80, 21,509.44 and 8,513.25

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Solution

The fourth proportional to 15,586.80, 21,509.44 and 8,513.25 is: 11,748.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,586.80 : 21,509.44 = 8,513.25 : x
  2. Step 2: Convert to fraction form
    15,586.80/21,509.44 = 8,513.25/x
  3. Step 3: Cross multiply
    15,586.80x = 21,509.44 × 8,513.25
  4. Step 4: Simplify right side
    15,586.80x = 183,115,240.08
  5. Step 5: Solve for x
    x = 183,115,240.08/15,586.80
  6. Step 6: Final answer
    x = 11,748.10

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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.