Home / 9,580.40-13,219.90-5,330.79

Finding the Fourth Proportional to 9,580.40, 13,219.90 and 5,330.79

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Solution

The fourth proportional to 9,580.40, 13,219.90 and 5,330.79 is: 7,355.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,580.40 : 13,219.90 = 5,330.79 : x
  2. Step 2: Convert to fraction form
    9,580.40/13,219.90 = 5,330.79/x
  3. Step 3: Cross multiply
    9,580.40x = 13,219.90 × 5,330.79
  4. Step 4: Simplify right side
    9,580.40x = 70,472,444.62
  5. Step 5: Solve for x
    x = 70,472,444.62/9,580.40
  6. Step 6: Final answer
    x = 7,355.90

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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.