Home / 13,403.04-18,496.09-7,434.72

Finding the Fourth Proportional to 13,403.04, 18,496.09 and 7,434.72

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Solution

The fourth proportional to 13,403.04, 18,496.09 and 7,434.72 is: 10,259.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.04 : 18,496.09 = 7,434.72 : x
  2. Step 2: Convert to fraction form
    13,403.04/18,496.09 = 7,434.72/x
  3. Step 3: Cross multiply
    13,403.04x = 18,496.09 × 7,434.72
  4. Step 4: Simplify right side
    13,403.04x = 137,513,250.24
  5. Step 5: Solve for x
    x = 137,513,250.24/13,403.04
  6. Step 6: Final answer
    x = 10,259.86

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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.