Home / 13,207.40-19,782.30-11,748.20

Finding the Fourth Proportional to 13,207.40, 19,782.30 and 11,748.20

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Solution

The fourth proportional to 13,207.40, 19,782.30 and 11,748.20 is: 17,596.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.40 : 19,782.30 = 11,748.20 : x
  2. Step 2: Convert to fraction form
    13,207.40/19,782.30 = 11,748.20/x
  3. Step 3: Cross multiply
    13,207.40x = 19,782.30 × 11,748.20
  4. Step 4: Simplify right side
    13,207.40x = 232,406,416.86
  5. Step 5: Solve for x
    x = 232,406,416.86/13,207.40
  6. Step 6: Final answer
    x = 17,596.68

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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.