Home / 15,720.30-23,579.37-5,855.04

Finding the Fourth Proportional to 15,720.30, 23,579.37 and 5,855.04

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Solution

The fourth proportional to 15,720.30, 23,579.37 and 5,855.04 is: 8,782.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,720.30 : 23,579.37 = 5,855.04 : x
  2. Step 2: Convert to fraction form
    15,720.30/23,579.37 = 5,855.04/x
  3. Step 3: Cross multiply
    15,720.30x = 23,579.37 × 5,855.04
  4. Step 4: Simplify right side
    15,720.30x = 138,058,154.52
  5. Step 5: Solve for x
    x = 138,058,154.52/15,720.30
  6. Step 6: Final answer
    x = 8,782.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.