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Finding the Fourth Proportional to 18,897.93, 28,346.91 and 8,497.53

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Solution

The fourth proportional to 18,897.93, 28,346.91 and 8,497.53 is: 12,746.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,897.93 : 28,346.91 = 8,497.53 : x
  2. Step 2: Convert to fraction form
    18,897.93/28,346.91 = 8,497.53/x
  3. Step 3: Cross multiply
    18,897.93x = 28,346.91 × 8,497.53
  4. Step 4: Simplify right side
    18,897.93x = 240,878,718.13
  5. Step 5: Solve for x
    x = 240,878,718.13/18,897.93
  6. Step 6: Final answer
    x = 12,746.30

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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.