Home / 15,256.76-21,053.39-8,541.25

Finding the Fourth Proportional to 15,256.76, 21,053.39 and 8,541.25

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Solution

The fourth proportional to 15,256.76, 21,053.39 and 8,541.25 is: 11,786.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,256.76 : 21,053.39 = 8,541.25 : x
  2. Step 2: Convert to fraction form
    15,256.76/21,053.39 = 8,541.25/x
  3. Step 3: Cross multiply
    15,256.76x = 21,053.39 × 8,541.25
  4. Step 4: Simplify right side
    15,256.76x = 179,822,172.00
  5. Step 5: Solve for x
    x = 179,822,172.00/15,256.76
  6. Step 6: Final answer
    x = 11,786.40

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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.