Home / 9,903.29-13,666.20-5,426.99

Finding the Fourth Proportional to 9,903.29, 13,666.20 and 5,426.99

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Solution

The fourth proportional to 9,903.29, 13,666.20 and 5,426.99 is: 7,489.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903.29 : 13,666.20 = 5,426.99 : x
  2. Step 2: Convert to fraction form
    9,903.29/13,666.20 = 5,426.99/x
  3. Step 3: Cross multiply
    9,903.29x = 13,666.20 × 5,426.99
  4. Step 4: Simplify right side
    9,903.29x = 74,166,262.41
  5. Step 5: Solve for x
    x = 74,166,262.41/9,903.29
  6. Step 6: Final answer
    x = 7,489.06

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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.