Home / 15,382.32-21,216.24-10,603.84

Finding the Fourth Proportional to 15,382.32, 21,216.24 and 10,603.84

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Solution

The fourth proportional to 15,382.32, 21,216.24 and 10,603.84 is: 14,625.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,382.32 : 21,216.24 = 10,603.84 : x
  2. Step 2: Convert to fraction form
    15,382.32/21,216.24 = 10,603.84/x
  3. Step 3: Cross multiply
    15,382.32x = 21,216.24 × 10,603.84
  4. Step 4: Simplify right side
    15,382.32x = 224,973,614.36
  5. Step 5: Solve for x
    x = 224,973,614.36/15,382.32
  6. Step 6: Final answer
    x = 14,625.47

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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.