Home / 9,409.49-12,985.34-5,320.96

Finding the Fourth Proportional to 9,409.49, 12,985.34 and 5,320.96

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Solution

The fourth proportional to 9,409.49, 12,985.34 and 5,320.96 is: 7,343.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,409.49 : 12,985.34 = 5,320.96 : x
  2. Step 2: Convert to fraction form
    9,409.49/12,985.34 = 5,320.96/x
  3. Step 3: Cross multiply
    9,409.49x = 12,985.34 × 5,320.96
  4. Step 4: Simplify right side
    9,409.49x = 69,094,474.73
  5. Step 5: Solve for x
    x = 69,094,474.73/9,409.49
  6. Step 6: Final answer
    x = 7,343.06

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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.