Home / 13,143.08-19,714.26-4,378.16

Finding the Fourth Proportional to 13,143.08, 19,714.26 and 4,378.16

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Solution

The fourth proportional to 13,143.08, 19,714.26 and 4,378.16 is: 6,567.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,143.08 : 19,714.26 = 4,378.16 : x
  2. Step 2: Convert to fraction form
    13,143.08/19,714.26 = 4,378.16/x
  3. Step 3: Cross multiply
    13,143.08x = 19,714.26 × 4,378.16
  4. Step 4: Simplify right side
    13,143.08x = 86,312,184.56
  5. Step 5: Solve for x
    x = 86,312,184.56/13,143.08
  6. Step 6: Final answer
    x = 6,567.12

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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.