Home / 13,802.30-19,045.59-7,832.78

Finding the Fourth Proportional to 13,802.30, 19,045.59 and 7,832.78

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Solution

The fourth proportional to 13,802.30, 19,045.59 and 7,832.78 is: 10,808.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,802.30 : 19,045.59 = 7,832.78 : x
  2. Step 2: Convert to fraction form
    13,802.30/19,045.59 = 7,832.78/x
  3. Step 3: Cross multiply
    13,802.30x = 19,045.59 × 7,832.78
  4. Step 4: Simplify right side
    13,802.30x = 149,179,916.44
  5. Step 5: Solve for x
    x = 149,179,916.44/13,802.30
  6. Step 6: Final answer
    x = 10,808.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.