Home / 15,551.29-21,461.25-8,477.83

Finding the Fourth Proportional to 15,551.29, 21,461.25 and 8,477.83

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Solution

The fourth proportional to 15,551.29, 21,461.25 and 8,477.83 is: 11,699.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,551.29 : 21,461.25 = 8,477.83 : x
  2. Step 2: Convert to fraction form
    15,551.29/21,461.25 = 8,477.83/x
  3. Step 3: Cross multiply
    15,551.29x = 21,461.25 × 8,477.83
  4. Step 4: Simplify right side
    15,551.29x = 181,944,829.09
  5. Step 5: Solve for x
    x = 181,944,829.09/15,551.29
  6. Step 6: Final answer
    x = 11,699.66

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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.