Home / 7,585.60-11,378.40-6,289.60

Finding the Fourth Proportional to 7,585.60, 11,378.40 and 6,289.60

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Solution

The fourth proportional to 7,585.60, 11,378.40 and 6,289.60 is: 9,434.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,585.60 : 11,378.40 = 6,289.60 : x
  2. Step 2: Convert to fraction form
    7,585.60/11,378.40 = 6,289.60/x
  3. Step 3: Cross multiply
    7,585.60x = 11,378.40 × 6,289.60
  4. Step 4: Simplify right side
    7,585.60x = 71,565,584.64
  5. Step 5: Solve for x
    x = 71,565,584.64/7,585.60
  6. Step 6: Final answer
    x = 9,434.40

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Similar ratio
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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.