Home / 9,655.44-13,323.87-5,405.76

Finding the Fourth Proportional to 9,655.44, 13,323.87 and 5,405.76

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Solution

The fourth proportional to 9,655.44, 13,323.87 and 5,405.76 is: 7,459.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,655.44 : 13,323.87 = 5,405.76 : x
  2. Step 2: Convert to fraction form
    9,655.44/13,323.87 = 5,405.76/x
  3. Step 3: Cross multiply
    9,655.44x = 13,323.87 × 5,405.76
  4. Step 4: Simplify right side
    9,655.44x = 72,025,643.49
  5. Step 5: Solve for x
    x = 72,025,643.49/9,655.44
  6. Step 6: Final answer
    x = 7,459.59

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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.