Home / 13,020.30-19,530.47-4,706.18

Finding the Fourth Proportional to 13,020.30, 19,530.47 and 4,706.18

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Solution

The fourth proportional to 13,020.30, 19,530.47 and 4,706.18 is: 7,059.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.30 : 19,530.47 = 4,706.18 : x
  2. Step 2: Convert to fraction form
    13,020.30/19,530.47 = 4,706.18/x
  3. Step 3: Cross multiply
    13,020.30x = 19,530.47 × 4,706.18
  4. Step 4: Simplify right side
    13,020.30x = 91,913,967.90
  5. Step 5: Solve for x
    x = 91,913,967.90/13,020.30
  6. Step 6: Final answer
    x = 7,059.28

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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.