Home / 9,678.36-13,355.46-5,487.24

Finding the Fourth Proportional to 9,678.36, 13,355.46 and 5,487.24

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Solution

The fourth proportional to 9,678.36, 13,355.46 and 5,487.24 is: 7,572.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,678.36 : 13,355.46 = 5,487.24 : x
  2. Step 2: Convert to fraction form
    9,678.36/13,355.46 = 5,487.24/x
  3. Step 3: Cross multiply
    9,678.36x = 13,355.46 × 5,487.24
  4. Step 4: Simplify right side
    9,678.36x = 73,284,614.33
  5. Step 5: Solve for x
    x = 73,284,614.33/9,678.36
  6. Step 6: Final answer
    x = 7,572.01

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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.