Home / 12,780.04-19,170.16-4,460.02

Finding the Fourth Proportional to 12,780.04, 19,170.16 and 4,460.02

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Solution

The fourth proportional to 12,780.04, 19,170.16 and 4,460.02 is: 6,690.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,780.04 : 19,170.16 = 4,460.02 : x
  2. Step 2: Convert to fraction form
    12,780.04/19,170.16 = 4,460.02/x
  3. Step 3: Cross multiply
    12,780.04x = 19,170.16 × 4,460.02
  4. Step 4: Simplify right side
    12,780.04x = 85,499,297.00
  5. Step 5: Solve for x
    x = 85,499,297.00/12,780.04
  6. Step 6: Final answer
    x = 6,690.06

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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.