Home / 13,055.30-19,581.02-4,290.30

Finding the Fourth Proportional to 13,055.30, 19,581.02 and 4,290.30

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Solution

The fourth proportional to 13,055.30, 19,581.02 and 4,290.30 is: 6,434.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,055.30 : 19,581.02 = 4,290.30 : x
  2. Step 2: Convert to fraction form
    13,055.30/19,581.02 = 4,290.30/x
  3. Step 3: Cross multiply
    13,055.30x = 19,581.02 × 4,290.30
  4. Step 4: Simplify right side
    13,055.30x = 84,008,450.11
  5. Step 5: Solve for x
    x = 84,008,450.11/13,055.30
  6. Step 6: Final answer
    x = 6,434.82

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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.