Home / 13,312.24-19,980.64-6,743.04

Finding the Fourth Proportional to 13,312.24, 19,980.64 and 6,743.04

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Solution

The fourth proportional to 13,312.24, 19,980.64 and 6,743.04 is: 10,120.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.24 : 19,980.64 = 6,743.04 : x
  2. Step 2: Convert to fraction form
    13,312.24/19,980.64 = 6,743.04/x
  3. Step 3: Cross multiply
    13,312.24x = 19,980.64 × 6,743.04
  4. Step 4: Simplify right side
    13,312.24x = 134,730,254.75
  5. Step 5: Solve for x
    x = 134,730,254.75/13,312.24
  6. Step 6: Final answer
    x = 10,120.78

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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.