Home / 12,810.36-19,215.18-5,013.48

Finding the Fourth Proportional to 12,810.36, 19,215.18 and 5,013.48

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Solution

The fourth proportional to 12,810.36, 19,215.18 and 5,013.48 is: 7,520.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,810.36 : 19,215.18 = 5,013.48 : x
  2. Step 2: Convert to fraction form
    12,810.36/19,215.18 = 5,013.48/x
  3. Step 3: Cross multiply
    12,810.36x = 19,215.18 × 5,013.48
  4. Step 4: Simplify right side
    12,810.36x = 96,334,920.63
  5. Step 5: Solve for x
    x = 96,334,920.63/12,810.36
  6. Step 6: Final answer
    x = 7,520.08

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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.