Home / 9,903.42-13,666.77-5,427.18

Finding the Fourth Proportional to 9,903.42, 13,666.77 and 5,427.18

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Solution

The fourth proportional to 9,903.42, 13,666.77 and 5,427.18 is: 7,489.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903.42 : 13,666.77 = 5,427.18 : x
  2. Step 2: Convert to fraction form
    9,903.42/13,666.77 = 5,427.18/x
  3. Step 3: Cross multiply
    9,903.42x = 13,666.77 × 5,427.18
  4. Step 4: Simplify right side
    9,903.42x = 74,172,020.81
  5. Step 5: Solve for x
    x = 74,172,020.81/9,903.42
  6. Step 6: Final answer
    x = 7,489.54

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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.