Home / 9,903.45-13,666.63-5,427.13

Finding the Fourth Proportional to 9,903.45, 13,666.63 and 5,427.13

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Solution

The fourth proportional to 9,903.45, 13,666.63 and 5,427.13 is: 7,489.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903.45 : 13,666.63 = 5,427.13 : x
  2. Step 2: Convert to fraction form
    9,903.45/13,666.63 = 5,427.13/x
  3. Step 3: Cross multiply
    9,903.45x = 13,666.63 × 5,427.13
  4. Step 4: Simplify right side
    9,903.45x = 74,170,577.67
  5. Step 5: Solve for x
    x = 74,170,577.67/9,903.45
  6. Step 6: Final answer
    x = 7,489.37

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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.