Home / 18,987.80-26,204.61-10,923.93

Finding the Fourth Proportional to 18,987.80, 26,204.61 and 10,923.93

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Solution

The fourth proportional to 18,987.80, 26,204.61 and 10,923.93 is: 15,075.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,987.80 : 26,204.61 = 10,923.93 : x
  2. Step 2: Convert to fraction form
    18,987.80/26,204.61 = 10,923.93/x
  3. Step 3: Cross multiply
    18,987.80x = 26,204.61 × 10,923.93
  4. Step 4: Simplify right side
    18,987.80x = 286,257,325.32
  5. Step 5: Solve for x
    x = 286,257,325.32/18,987.80
  6. Step 6: Final answer
    x = 15,075.86

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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.