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Finding the Fourth Proportional to 15,681.53, 23,515.01 and 8,284.01

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Solution

The fourth proportional to 15,681.53, 23,515.01 and 8,284.01 is: 12,422.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,681.53 : 23,515.01 = 8,284.01 : x
  2. Step 2: Convert to fraction form
    15,681.53/23,515.01 = 8,284.01/x
  3. Step 3: Cross multiply
    15,681.53x = 23,515.01 × 8,284.01
  4. Step 4: Simplify right side
    15,681.53x = 194,798,450.06
  5. Step 5: Solve for x
    x = 194,798,450.06/15,681.53
  6. Step 6: Final answer
    x = 12,422.16

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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.