Home / 13,620.32-20,444.80-12,070.26

Finding the Fourth Proportional to 13,620.32, 20,444.80 and 12,070.26

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Solution

The fourth proportional to 13,620.32, 20,444.80 and 12,070.26 is: 18,118.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,620.32 : 20,444.80 = 12,070.26 : x
  2. Step 2: Convert to fraction form
    13,620.32/20,444.80 = 12,070.26/x
  3. Step 3: Cross multiply
    13,620.32x = 20,444.80 × 12,070.26
  4. Step 4: Simplify right side
    13,620.32x = 246,774,051.65
  5. Step 5: Solve for x
    x = 246,774,051.65/13,620.32
  6. Step 6: Final answer
    x = 18,118.08

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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.