Home / 13,395.22-18,485.48-7,426.51

Finding the Fourth Proportional to 13,395.22, 18,485.48 and 7,426.51

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Solution

The fourth proportional to 13,395.22, 18,485.48 and 7,426.51 is: 10,248.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395.22 : 18,485.48 = 7,426.51 : x
  2. Step 2: Convert to fraction form
    13,395.22/18,485.48 = 7,426.51/x
  3. Step 3: Cross multiply
    13,395.22x = 18,485.48 × 7,426.51
  4. Step 4: Simplify right side
    13,395.22x = 137,282,602.07
  5. Step 5: Solve for x
    x = 137,282,602.07/13,395.22
  6. Step 6: Final answer
    x = 10,248.63

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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.