Home / 15,039.02-20,754.56-8,666.56

Finding the Fourth Proportional to 15,039.02, 20,754.56 and 8,666.56

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Solution

The fourth proportional to 15,039.02, 20,754.56 and 8,666.56 is: 11,960.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,039.02 : 20,754.56 = 8,666.56 : x
  2. Step 2: Convert to fraction form
    15,039.02/20,754.56 = 8,666.56/x
  3. Step 3: Cross multiply
    15,039.02x = 20,754.56 × 8,666.56
  4. Step 4: Simplify right side
    15,039.02x = 179,870,639.51
  5. Step 5: Solve for x
    x = 179,870,639.51/15,039.02
  6. Step 6: Final answer
    x = 11,960.26

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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.