Home / 9,765.30-13,476.02-5,288.78

Finding the Fourth Proportional to 9,765.30, 13,476.02 and 5,288.78

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Solution

The fourth proportional to 9,765.30, 13,476.02 and 5,288.78 is: 7,298.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,765.30 : 13,476.02 = 5,288.78 : x
  2. Step 2: Convert to fraction form
    9,765.30/13,476.02 = 5,288.78/x
  3. Step 3: Cross multiply
    9,765.30x = 13,476.02 × 5,288.78
  4. Step 4: Simplify right side
    9,765.30x = 71,271,723.10
  5. Step 5: Solve for x
    x = 71,271,723.10/9,765.30
  6. Step 6: Final answer
    x = 7,298.47

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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.