Home / 9,677.40-13,355.10-5,485.56

Finding the Fourth Proportional to 9,677.40, 13,355.10 and 5,485.56

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Solution

The fourth proportional to 9,677.40, 13,355.10 and 5,485.56 is: 7,570.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,677.40 : 13,355.10 = 5,485.56 : x
  2. Step 2: Convert to fraction form
    9,677.40/13,355.10 = 5,485.56/x
  3. Step 3: Cross multiply
    9,677.40x = 13,355.10 × 5,485.56
  4. Step 4: Simplify right side
    9,677.40x = 73,260,202.36
  5. Step 5: Solve for x
    x = 73,260,202.36/9,677.40
  6. Step 6: Final answer
    x = 7,570.24

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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.