Home / 9,765.40-13,475.04-5,785.60

Finding the Fourth Proportional to 9,765.40, 13,475.04 and 5,785.60

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Solution

The fourth proportional to 9,765.40, 13,475.04 and 5,785.60 is: 7,983.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,765.40 : 13,475.04 = 5,785.60 : x
  2. Step 2: Convert to fraction form
    9,765.40/13,475.04 = 5,785.60/x
  3. Step 3: Cross multiply
    9,765.40x = 13,475.04 × 5,785.60
  4. Step 4: Simplify right side
    9,765.40x = 77,961,191.42
  5. Step 5: Solve for x
    x = 77,961,191.42/9,765.40
  6. Step 6: Final answer
    x = 7,983.41

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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.