Home / 13,395.95-18,485.17-7,427.51

Finding the Fourth Proportional to 13,395.95, 18,485.17 and 7,427.51

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Solution

The fourth proportional to 13,395.95, 18,485.17 and 7,427.51 is: 10,249.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395.95 : 18,485.17 = 7,427.51 : x
  2. Step 2: Convert to fraction form
    13,395.95/18,485.17 = 7,427.51/x
  3. Step 3: Cross multiply
    13,395.95x = 18,485.17 × 7,427.51
  4. Step 4: Simplify right side
    13,395.95x = 137,298,655.46
  5. Step 5: Solve for x
    x = 137,298,655.46/13,395.95
  6. Step 6: Final answer
    x = 10,249.27

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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.