Home / 13,010.96-17,955.12-7,042.67

Finding the Fourth Proportional to 13,010.96, 17,955.12 and 7,042.67

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Solution

The fourth proportional to 13,010.96, 17,955.12 and 7,042.67 is: 9,718.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,010.96 : 17,955.12 = 7,042.67 : x
  2. Step 2: Convert to fraction form
    13,010.96/17,955.12 = 7,042.67/x
  3. Step 3: Cross multiply
    13,010.96x = 17,955.12 × 7,042.67
  4. Step 4: Simplify right side
    13,010.96x = 126,452,029.86
  5. Step 5: Solve for x
    x = 126,452,029.86/13,010.96
  6. Step 6: Final answer
    x = 9,718.89

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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.