Home / 15,470.28-21,345.44-10,443.84

Finding the Fourth Proportional to 15,470.28, 21,345.44 and 10,443.84

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Solution

The fourth proportional to 15,470.28, 21,345.44 and 10,443.84 is: 14,410.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,470.28 : 21,345.44 = 10,443.84 : x
  2. Step 2: Convert to fraction form
    15,470.28/21,345.44 = 10,443.84/x
  3. Step 3: Cross multiply
    15,470.28x = 21,345.44 × 10,443.84
  4. Step 4: Simplify right side
    15,470.28x = 222,928,360.09
  5. Step 5: Solve for x
    x = 222,928,360.09/15,470.28
  6. Step 6: Final answer
    x = 14,410.11

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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.