Home / 19,018.52-28,504.02-9,155.16

Finding the Fourth Proportional to 19,018.52, 28,504.02 and 9,155.16

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Solution

The fourth proportional to 19,018.52, 28,504.02 and 9,155.16 is: 13,721.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,018.52 : 28,504.02 = 9,155.16 : x
  2. Step 2: Convert to fraction form
    19,018.52/28,504.02 = 9,155.16/x
  3. Step 3: Cross multiply
    19,018.52x = 28,504.02 × 9,155.16
  4. Step 4: Simplify right side
    19,018.52x = 260,958,863.74
  5. Step 5: Solve for x
    x = 260,958,863.74/19,018.52
  6. Step 6: Final answer
    x = 13,721.30

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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.