Home / 12,810.40-19,217.70-4,043.20

Finding the Fourth Proportional to 12,810.40, 19,217.70 and 4,043.20

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Solution

The fourth proportional to 12,810.40, 19,217.70 and 4,043.20 is: 6,065.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,810.40 : 19,217.70 = 4,043.20 : x
  2. Step 2: Convert to fraction form
    12,810.40/19,217.70 = 4,043.20/x
  3. Step 3: Cross multiply
    12,810.40x = 19,217.70 × 4,043.20
  4. Step 4: Simplify right side
    12,810.40x = 77,701,004.64
  5. Step 5: Solve for x
    x = 77,701,004.64/12,810.40
  6. Step 6: Final answer
    x = 6,065.46

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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.