Home / 9,619.89-13,274.13-5,370.45

Finding the Fourth Proportional to 9,619.89, 13,274.13 and 5,370.45

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Solution

The fourth proportional to 9,619.89, 13,274.13 and 5,370.45 is: 7,410.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,619.89 : 13,274.13 = 5,370.45 : x
  2. Step 2: Convert to fraction form
    9,619.89/13,274.13 = 5,370.45/x
  3. Step 3: Cross multiply
    9,619.89x = 13,274.13 × 5,370.45
  4. Step 4: Simplify right side
    9,619.89x = 71,288,051.46
  5. Step 5: Solve for x
    x = 71,288,051.46/9,619.89
  6. Step 6: Final answer
    x = 7,410.49

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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.