Home / 12,897.79-19,349.47-4,012.95

Finding the Fourth Proportional to 12,897.79, 19,349.47 and 4,012.95

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Solution

The fourth proportional to 12,897.79, 19,349.47 and 4,012.95 is: 6,020.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,897.79 : 19,349.47 = 4,012.95 : x
  2. Step 2: Convert to fraction form
    12,897.79/19,349.47 = 4,012.95/x
  3. Step 3: Cross multiply
    12,897.79x = 19,349.47 × 4,012.95
  4. Step 4: Simplify right side
    12,897.79x = 77,648,455.64
  5. Step 5: Solve for x
    x = 77,648,455.64/12,897.79
  6. Step 6: Final answer
    x = 6,020.29

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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.