Home / 9,579.87-13,219.18-5,330.25

Finding the Fourth Proportional to 9,579.87, 13,219.18 and 5,330.25

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Solution

The fourth proportional to 9,579.87, 13,219.18 and 5,330.25 is: 7,355.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,579.87 : 13,219.18 = 5,330.25 : x
  2. Step 2: Convert to fraction form
    9,579.87/13,219.18 = 5,330.25/x
  3. Step 3: Cross multiply
    9,579.87x = 13,219.18 × 5,330.25
  4. Step 4: Simplify right side
    9,579.87x = 70,461,534.20
  5. Step 5: Solve for x
    x = 70,461,534.20/9,579.87
  6. Step 6: Final answer
    x = 7,355.17

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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.