Home / 15,386.45-21,232.70-8,673.44

Finding the Fourth Proportional to 15,386.45, 21,232.70 and 8,673.44

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Solution

The fourth proportional to 15,386.45, 21,232.70 and 8,673.44 is: 11,969.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,386.45 : 21,232.70 = 8,673.44 : x
  2. Step 2: Convert to fraction form
    15,386.45/21,232.70 = 8,673.44/x
  3. Step 3: Cross multiply
    15,386.45x = 21,232.70 × 8,673.44
  4. Step 4: Simplify right side
    15,386.45x = 184,160,453.04
  5. Step 5: Solve for x
    x = 184,160,453.04/15,386.45
  6. Step 6: Final answer
    x = 11,969.00

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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.