Home / 12,897.23-19,345.84-8,513.66

Finding the Fourth Proportional to 12,897.23, 19,345.84 and 8,513.66

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Solution

The fourth proportional to 12,897.23, 19,345.84 and 8,513.66 is: 12,770.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,897.23 : 19,345.84 = 8,513.66 : x
  2. Step 2: Convert to fraction form
    12,897.23/19,345.84 = 8,513.66/x
  3. Step 3: Cross multiply
    12,897.23x = 19,345.84 × 8,513.66
  4. Step 4: Simplify right side
    12,897.23x = 164,703,807.45
  5. Step 5: Solve for x
    x = 164,703,807.45/12,897.23
  6. Step 6: Final answer
    x = 12,770.48

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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.