Home / 9,765.12-13,475.79-5,288.86

Finding the Fourth Proportional to 9,765.12, 13,475.79 and 5,288.86

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Solution

The fourth proportional to 9,765.12, 13,475.79 and 5,288.86 is: 7,298.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,765.12 : 13,475.79 = 5,288.86 : x
  2. Step 2: Convert to fraction form
    9,765.12/13,475.79 = 5,288.86/x
  3. Step 3: Cross multiply
    9,765.12x = 13,475.79 × 5,288.86
  4. Step 4: Simplify right side
    9,765.12x = 71,271,533.01
  5. Step 5: Solve for x
    x = 71,271,533.01/9,765.12
  6. Step 6: Final answer
    x = 7,298.58

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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.