Home / 13,319.16-19,981.62-6,748.92

Finding the Fourth Proportional to 13,319.16, 19,981.62 and 6,748.92

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Solution

The fourth proportional to 13,319.16, 19,981.62 and 6,748.92 is: 10,124.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.16 : 19,981.62 = 6,748.92 : x
  2. Step 2: Convert to fraction form
    13,319.16/19,981.62 = 6,748.92/x
  3. Step 3: Cross multiply
    13,319.16x = 19,981.62 × 6,748.92
  4. Step 4: Simplify right side
    13,319.16x = 134,854,354.85
  5. Step 5: Solve for x
    x = 134,854,354.85/13,319.16
  6. Step 6: Final answer
    x = 10,124.84

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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.