Home / 18,928.02-26,103.69-11,855.10

Finding the Fourth Proportional to 18,928.02, 26,103.69 and 11,855.10

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Solution

The fourth proportional to 18,928.02, 26,103.69 and 11,855.10 is: 16,349.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,928.02 : 26,103.69 = 11,855.10 : x
  2. Step 2: Convert to fraction form
    18,928.02/26,103.69 = 11,855.10/x
  3. Step 3: Cross multiply
    18,928.02x = 26,103.69 × 11,855.10
  4. Step 4: Simplify right side
    18,928.02x = 309,461,855.32
  5. Step 5: Solve for x
    x = 309,461,855.32/18,928.02
  6. Step 6: Final answer
    x = 16,349.40

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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.