Home / 13,001.90-19,502.37-4,680.05

Finding the Fourth Proportional to 13,001.90, 19,502.37 and 4,680.05

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Solution

The fourth proportional to 13,001.90, 19,502.37 and 4,680.05 is: 7,019.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,001.90 : 19,502.37 = 4,680.05 : x
  2. Step 2: Convert to fraction form
    13,001.90/19,502.37 = 4,680.05/x
  3. Step 3: Cross multiply
    13,001.90x = 19,502.37 × 4,680.05
  4. Step 4: Simplify right side
    13,001.90x = 91,271,969.21
  5. Step 5: Solve for x
    x = 91,271,969.21/13,001.90
  6. Step 6: Final answer
    x = 7,019.90

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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.