Home / 9,621.36-13,280.50-5,644.08

Finding the Fourth Proportional to 9,621.36, 13,280.50 and 5,644.08

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Solution

The fourth proportional to 9,621.36, 13,280.50 and 5,644.08 is: 7,790.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,621.36 : 13,280.50 = 5,644.08 : x
  2. Step 2: Convert to fraction form
    9,621.36/13,280.50 = 5,644.08/x
  3. Step 3: Cross multiply
    9,621.36x = 13,280.50 × 5,644.08
  4. Step 4: Simplify right side
    9,621.36x = 74,956,176.22
  5. Step 5: Solve for x
    x = 74,956,176.22/9,621.36
  6. Step 6: Final answer
    x = 7,790.60

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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.