Home / 12,973.29-19,461.36-5,578.49

Finding the Fourth Proportional to 12,973.29, 19,461.36 and 5,578.49

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Solution

The fourth proportional to 12,973.29, 19,461.36 and 5,578.49 is: 8,368.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,973.29 : 19,461.36 = 5,578.49 : x
  2. Step 2: Convert to fraction form
    12,973.29/19,461.36 = 5,578.49/x
  3. Step 3: Cross multiply
    12,973.29x = 19,461.36 × 5,578.49
  4. Step 4: Simplify right side
    12,973.29x = 108,565,071.72
  5. Step 5: Solve for x
    x = 108,565,071.72/12,973.29
  6. Step 6: Final answer
    x = 8,368.36

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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.