Home / 13,995.18-19,313.60-7,707.54

Finding the Fourth Proportional to 13,995.18, 19,313.60 and 7,707.54

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Solution

The fourth proportional to 13,995.18, 19,313.60 and 7,707.54 is: 10,636.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995.18 : 19,313.60 = 7,707.54 : x
  2. Step 2: Convert to fraction form
    13,995.18/19,313.60 = 7,707.54/x
  3. Step 3: Cross multiply
    13,995.18x = 19,313.60 × 7,707.54
  4. Step 4: Simplify right side
    13,995.18x = 148,860,306.01
  5. Step 5: Solve for x
    x = 148,860,306.01/13,995.18
  6. Step 6: Final answer
    x = 10,636.54

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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.