Home / 13,042.69-17,998.90-7,074.40

Finding the Fourth Proportional to 13,042.69, 17,998.90 and 7,074.40

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Solution

The fourth proportional to 13,042.69, 17,998.90 and 7,074.40 is: 9,762.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,042.69 : 17,998.90 = 7,074.40 : x
  2. Step 2: Convert to fraction form
    13,042.69/17,998.90 = 7,074.40/x
  3. Step 3: Cross multiply
    13,042.69x = 17,998.90 × 7,074.40
  4. Step 4: Simplify right side
    13,042.69x = 127,331,418.16
  5. Step 5: Solve for x
    x = 127,331,418.16/13,042.69
  6. Step 6: Final answer
    x = 9,762.67

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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.