Home / 19,000.07-28,506.23-9,138.05

Finding the Fourth Proportional to 19,000.07, 28,506.23 and 9,138.05

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Solution

The fourth proportional to 19,000.07, 28,506.23 and 9,138.05 is: 13,710.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,000.07 : 28,506.23 = 9,138.05 : x
  2. Step 2: Convert to fraction form
    19,000.07/28,506.23 = 9,138.05/x
  3. Step 3: Cross multiply
    19,000.07x = 28,506.23 × 9,138.05
  4. Step 4: Simplify right side
    19,000.07x = 260,491,308.00
  5. Step 5: Solve for x
    x = 260,491,308.00/19,000.07
  6. Step 6: Final answer
    x = 13,710.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.