Home / 15,263.76-21,063.33-8,549.40

Finding the Fourth Proportional to 15,263.76, 21,063.33 and 8,549.40

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Solution

The fourth proportional to 15,263.76, 21,063.33 and 8,549.40 is: 11,797.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,263.76 : 21,063.33 = 8,549.40 : x
  2. Step 2: Convert to fraction form
    15,263.76/21,063.33 = 8,549.40/x
  3. Step 3: Cross multiply
    15,263.76x = 21,063.33 × 8,549.40
  4. Step 4: Simplify right side
    15,263.76x = 180,078,833.50
  5. Step 5: Solve for x
    x = 180,078,833.50/15,263.76
  6. Step 6: Final answer
    x = 11,797.80

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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.