Home / 13,023.99-17,967.15-7,715.79

Finding the Fourth Proportional to 13,023.99, 17,967.15 and 7,715.79

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Solution

The fourth proportional to 13,023.99, 17,967.15 and 7,715.79 is: 10,644.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,023.99 : 17,967.15 = 7,715.79 : x
  2. Step 2: Convert to fraction form
    13,023.99/17,967.15 = 7,715.79/x
  3. Step 3: Cross multiply
    13,023.99x = 17,967.15 × 7,715.79
  4. Step 4: Simplify right side
    13,023.99x = 138,630,756.30
  5. Step 5: Solve for x
    x = 138,630,756.30/13,023.99
  6. Step 6: Final answer
    x = 10,644.26

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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.