Home / 13,340.42-18,395.95-11,458.23

Finding the Fourth Proportional to 13,340.42, 18,395.95 and 11,458.23

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Solution

The fourth proportional to 13,340.42, 18,395.95 and 11,458.23 is: 15,800.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.42 : 18,395.95 = 11,458.23 : x
  2. Step 2: Convert to fraction form
    13,340.42/18,395.95 = 11,458.23/x
  3. Step 3: Cross multiply
    13,340.42x = 18,395.95 × 11,458.23
  4. Step 4: Simplify right side
    13,340.42x = 210,785,026.17
  5. Step 5: Solve for x
    x = 210,785,026.17/13,340.42
  6. Step 6: Final answer
    x = 15,800.48

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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.