Home / 9,195.40-13,809.30-7,120.45

Finding the Fourth Proportional to 9,195.40, 13,809.30 and 7,120.45

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Solution

The fourth proportional to 9,195.40, 13,809.30 and 7,120.45 is: 10,693.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,195.40 : 13,809.30 = 7,120.45 : x
  2. Step 2: Convert to fraction form
    9,195.40/13,809.30 = 7,120.45/x
  3. Step 3: Cross multiply
    9,195.40x = 13,809.30 × 7,120.45
  4. Step 4: Simplify right side
    9,195.40x = 98,328,430.19
  5. Step 5: Solve for x
    x = 98,328,430.19/9,195.40
  6. Step 6: Final answer
    x = 10,693.22

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1.5x scale

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.