Home / 12,990.22-19,482.50-4,106.24

Finding the Fourth Proportional to 12,990.22, 19,482.50 and 4,106.24

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Solution

The fourth proportional to 12,990.22, 19,482.50 and 4,106.24 is: 6,158.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,990.22 : 19,482.50 = 4,106.24 : x
  2. Step 2: Convert to fraction form
    12,990.22/19,482.50 = 4,106.24/x
  3. Step 3: Cross multiply
    12,990.22x = 19,482.50 × 4,106.24
  4. Step 4: Simplify right side
    12,990.22x = 79,999,820.80
  5. Step 5: Solve for x
    x = 79,999,820.80/12,990.22
  6. Step 6: Final answer
    x = 6,158.47

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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.