Home / 9,811.38-13,539.40-5,335.02

Finding the Fourth Proportional to 9,811.38, 13,539.40 and 5,335.02

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Solution

The fourth proportional to 9,811.38, 13,539.40 and 5,335.02 is: 7,362.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,811.38 : 13,539.40 = 5,335.02 : x
  2. Step 2: Convert to fraction form
    9,811.38/13,539.40 = 5,335.02/x
  3. Step 3: Cross multiply
    9,811.38x = 13,539.40 × 5,335.02
  4. Step 4: Simplify right side
    9,811.38x = 72,232,969.79
  5. Step 5: Solve for x
    x = 72,232,969.79/9,811.38
  6. Step 6: Final answer
    x = 7,362.16

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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.