Home / 9,903.07-13,665.78-5,426.67

Finding the Fourth Proportional to 9,903.07, 13,665.78 and 5,426.67

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Solution

The fourth proportional to 9,903.07, 13,665.78 and 5,426.67 is: 7,488.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903.07 : 13,665.78 = 5,426.67 : x
  2. Step 2: Convert to fraction form
    9,903.07/13,665.78 = 5,426.67/x
  3. Step 3: Cross multiply
    9,903.07x = 13,665.78 × 5,426.67
  4. Step 4: Simplify right side
    9,903.07x = 74,159,678.35
  5. Step 5: Solve for x
    x = 74,159,678.35/9,903.07
  6. Step 6: Final answer
    x = 7,488.55

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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.