Home / 9,688.98-13,370.48-5,439.92

Finding the Fourth Proportional to 9,688.98, 13,370.48 and 5,439.92

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Solution

The fourth proportional to 9,688.98, 13,370.48 and 5,439.92 is: 7,506.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,688.98 : 13,370.48 = 5,439.92 : x
  2. Step 2: Convert to fraction form
    9,688.98/13,370.48 = 5,439.92/x
  3. Step 3: Cross multiply
    9,688.98x = 13,370.48 × 5,439.92
  4. Step 4: Simplify right side
    9,688.98x = 72,734,341.56
  5. Step 5: Solve for x
    x = 72,734,341.56/9,688.98
  6. Step 6: Final answer
    x = 7,506.91

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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.