Home / 9,021.40-13,532.16-3,178.12

Finding the Fourth Proportional to 9,021.40, 13,532.16 and 3,178.12

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Solution

The fourth proportional to 9,021.40, 13,532.16 and 3,178.12 is: 4,767.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,021.40 : 13,532.16 = 3,178.12 : x
  2. Step 2: Convert to fraction form
    9,021.40/13,532.16 = 3,178.12/x
  3. Step 3: Cross multiply
    9,021.40x = 13,532.16 × 3,178.12
  4. Step 4: Simplify right side
    9,021.40x = 43,006,828.34
  5. Step 5: Solve for x
    x = 43,006,828.34/9,021.40
  6. Step 6: Final answer
    x = 4,767.20

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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.