Home / 15,188.63-20,962.33-8,901

Finding the Fourth Proportional to 15,188.63, 20,962.33 and 8,901

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Solution

The fourth proportional to 15,188.63, 20,962.33 and 8,901 is: 12,284.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,188.63 : 20,962.33 = 8,901 : x
  2. Step 2: Convert to fraction form
    15,188.63/20,962.33 = 8,901/x
  3. Step 3: Cross multiply
    15,188.63x = 20,962.33 × 8,901
  4. Step 4: Simplify right side
    15,188.63x = 186,585,677.08
  5. Step 5: Solve for x
    x = 186,585,677.08/15,188.63
  6. Step 6: Final answer
    x = 12,284.57

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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.