Home / 18,941.02-26,138.70-10,987.93

Finding the Fourth Proportional to 18,941.02, 26,138.70 and 10,987.93

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Solution

The fourth proportional to 18,941.02, 26,138.70 and 10,987.93 is: 15,163.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,941.02 : 26,138.70 = 10,987.93 : x
  2. Step 2: Convert to fraction form
    18,941.02/26,138.70 = 10,987.93/x
  3. Step 3: Cross multiply
    18,941.02x = 26,138.70 × 10,987.93
  4. Step 4: Simplify right side
    18,941.02x = 287,210,205.89
  5. Step 5: Solve for x
    x = 287,210,205.89/18,941.02
  6. Step 6: Final answer
    x = 15,163.40

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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.