Home / 15,619.52-21,559.56-10,905.32

Finding the Fourth Proportional to 15,619.52, 21,559.56 and 10,905.32

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Solution

The fourth proportional to 15,619.52, 21,559.56 and 10,905.32 is: 15,052.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,619.52 : 21,559.56 = 10,905.32 : x
  2. Step 2: Convert to fraction form
    15,619.52/21,559.56 = 10,905.32/x
  3. Step 3: Cross multiply
    15,619.52x = 21,559.56 × 10,905.32
  4. Step 4: Simplify right side
    15,619.52x = 235,113,900.86
  5. Step 5: Solve for x
    x = 235,113,900.86/15,619.52
  6. Step 6: Final answer
    x = 15,052.57

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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.