Home / 15,628.21-21,567.53-8,914.93

Finding the Fourth Proportional to 15,628.21, 21,567.53 and 8,914.93

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Solution

The fourth proportional to 15,628.21, 21,567.53 and 8,914.93 is: 12,302.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,628.21 : 21,567.53 = 8,914.93 : x
  2. Step 2: Convert to fraction form
    15,628.21/21,567.53 = 8,914.93/x
  3. Step 3: Cross multiply
    15,628.21x = 21,567.53 × 8,914.93
  4. Step 4: Simplify right side
    15,628.21x = 192,273,020.22
  5. Step 5: Solve for x
    x = 192,273,020.22/15,628.21
  6. Step 6: Final answer
    x = 12,302.95

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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.