Home / 9,749.98-13,439.16-7,621.74

Finding the Fourth Proportional to 9,749.98, 13,439.16 and 7,621.74

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Solution

The fourth proportional to 9,749.98, 13,439.16 and 7,621.74 is: 10,505.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,749.98 : 13,439.16 = 7,621.74 : x
  2. Step 2: Convert to fraction form
    9,749.98/13,439.16 = 7,621.74/x
  3. Step 3: Cross multiply
    9,749.98x = 13,439.16 × 7,621.74
  4. Step 4: Simplify right side
    9,749.98x = 102,429,783.34
  5. Step 5: Solve for x
    x = 102,429,783.34/9,749.98
  6. Step 6: Final answer
    x = 10,505.64

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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.