Home / 13,330.70-18,378.01-9,693.19

Finding the Fourth Proportional to 13,330.70, 18,378.01 and 9,693.19

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Solution

The fourth proportional to 13,330.70, 18,378.01 and 9,693.19 is: 13,363.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.70 : 18,378.01 = 9,693.19 : x
  2. Step 2: Convert to fraction form
    13,330.70/18,378.01 = 9,693.19/x
  3. Step 3: Cross multiply
    13,330.70x = 18,378.01 × 9,693.19
  4. Step 4: Simplify right side
    13,330.70x = 178,141,542.75
  5. Step 5: Solve for x
    x = 178,141,542.75/13,330.70
  6. Step 6: Final answer
    x = 13,363.25

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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.