Home / 12,810.36-19,208.89-4,910.55

Finding the Fourth Proportional to 12,810.36, 19,208.89 and 4,910.55

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Solution

The fourth proportional to 12,810.36, 19,208.89 and 4,910.55 is: 7,363.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,810.36 : 19,208.89 = 4,910.55 : x
  2. Step 2: Convert to fraction form
    12,810.36/19,208.89 = 4,910.55/x
  3. Step 3: Cross multiply
    12,810.36x = 19,208.89 × 4,910.55
  4. Step 4: Simplify right side
    12,810.36x = 94,326,214.79
  5. Step 5: Solve for x
    x = 94,326,214.79/12,810.36
  6. Step 6: Final answer
    x = 7,363.28

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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.