Home / 15,015.08-20,707.32-12,505.52

Finding the Fourth Proportional to 15,015.08, 20,707.32 and 12,505.52

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Solution

The fourth proportional to 15,015.08, 20,707.32 and 12,505.52 is: 17,246.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,015.08 : 20,707.32 = 12,505.52 : x
  2. Step 2: Convert to fraction form
    15,015.08/20,707.32 = 12,505.52/x
  3. Step 3: Cross multiply
    15,015.08x = 20,707.32 × 12,505.52
  4. Step 4: Simplify right side
    15,015.08x = 258,955,804.41
  5. Step 5: Solve for x
    x = 258,955,804.41/15,015.08
  6. Step 6: Final answer
    x = 17,246.38

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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.