Home / 15,552.10-21,461.79-8,837.20

Finding the Fourth Proportional to 15,552.10, 21,461.79 and 8,837.20

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Solution

The fourth proportional to 15,552.10, 21,461.79 and 8,837.20 is: 12,195.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,552.10 : 21,461.79 = 8,837.20 : x
  2. Step 2: Convert to fraction form
    15,552.10/21,461.79 = 8,837.20/x
  3. Step 3: Cross multiply
    15,552.10x = 21,461.79 × 8,837.20
  4. Step 4: Simplify right side
    15,552.10x = 189,662,130.59
  5. Step 5: Solve for x
    x = 189,662,130.59/15,552.10
  6. Step 6: Final answer
    x = 12,195.27

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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.