Home / 9,680.64-13,359.29-5,488.89

Finding the Fourth Proportional to 9,680.64, 13,359.29 and 5,488.89

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Solution

The fourth proportional to 9,680.64, 13,359.29 and 5,488.89 is: 7,574.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,680.64 : 13,359.29 = 5,488.89 : x
  2. Step 2: Convert to fraction form
    9,680.64/13,359.29 = 5,488.89/x
  3. Step 3: Cross multiply
    9,680.64x = 13,359.29 × 5,488.89
  4. Step 4: Simplify right side
    9,680.64x = 73,327,645.84
  5. Step 5: Solve for x
    x = 73,327,645.84/9,680.64
  6. Step 6: Final answer
    x = 7,574.67

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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.