Home / 12,670.19-19,001.72-4,772.08

Finding the Fourth Proportional to 12,670.19, 19,001.72 and 4,772.08

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Solution

The fourth proportional to 12,670.19, 19,001.72 and 4,772.08 is: 7,156.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,670.19 : 19,001.72 = 4,772.08 : x
  2. Step 2: Convert to fraction form
    12,670.19/19,001.72 = 4,772.08/x
  3. Step 3: Cross multiply
    12,670.19x = 19,001.72 × 4,772.08
  4. Step 4: Simplify right side
    12,670.19x = 90,677,763.66
  5. Step 5: Solve for x
    x = 90,677,763.66/12,670.19
  6. Step 6: Final answer
    x = 7,156.78

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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.