Home / 15,386.83-21,234.98-8,673.08

Finding the Fourth Proportional to 15,386.83, 21,234.98 and 8,673.08

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Solution

The fourth proportional to 15,386.83, 21,234.98 and 8,673.08 is: 11,969.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,386.83 : 21,234.98 = 8,673.08 : x
  2. Step 2: Convert to fraction form
    15,386.83/21,234.98 = 8,673.08/x
  3. Step 3: Cross multiply
    15,386.83x = 21,234.98 × 8,673.08
  4. Step 4: Simplify right side
    15,386.83x = 184,172,755.11
  5. Step 5: Solve for x
    x = 184,172,755.11/15,386.83
  6. Step 6: Final answer
    x = 11,969.51

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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.