Home / 15,551.26-21,461.05-8,477.68

Finding the Fourth Proportional to 15,551.26, 21,461.05 and 8,477.68

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Solution

The fourth proportional to 15,551.26, 21,461.05 and 8,477.68 is: 11,699.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,551.26 : 21,461.05 = 8,477.68 : x
  2. Step 2: Convert to fraction form
    15,551.26/21,461.05 = 8,477.68/x
  3. Step 3: Cross multiply
    15,551.26x = 21,461.05 × 8,477.68
  4. Step 4: Simplify right side
    15,551.26x = 181,939,914.36
  5. Step 5: Solve for x
    x = 181,939,914.36/15,551.26
  6. Step 6: Final answer
    x = 11,699.37

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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.