Home / 9,709.20-14,563.80-5,811.60

Finding the Fourth Proportional to 9,709.20, 14,563.80 and 5,811.60

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Solution

The fourth proportional to 9,709.20, 14,563.80 and 5,811.60 is: 8,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,709.20 : 14,563.80 = 5,811.60 : x
  2. Step 2: Convert to fraction form
    9,709.20/14,563.80 = 5,811.60/x
  3. Step 3: Cross multiply
    9,709.20x = 14,563.80 × 5,811.60
  4. Step 4: Simplify right side
    9,709.20x = 84,638,980.08
  5. Step 5: Solve for x
    x = 84,638,980.08/9,709.20
  6. Step 6: Final answer
    x = 8,717.40

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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.