Home / 9,903.64-13,666.98-5,427.56

Finding the Fourth Proportional to 9,903.64, 13,666.98 and 5,427.56

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Solution

The fourth proportional to 9,903.64, 13,666.98 and 5,427.56 is: 7,490.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903.64 : 13,666.98 = 5,427.56 : x
  2. Step 2: Convert to fraction form
    9,903.64/13,666.98 = 5,427.56/x
  3. Step 3: Cross multiply
    9,903.64x = 13,666.98 × 5,427.56
  4. Step 4: Simplify right side
    9,903.64x = 74,178,353.97
  5. Step 5: Solve for x
    x = 74,178,353.97/9,903.64
  6. Step 6: Final answer
    x = 7,490.01

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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.