Home / 7,709.08-11,563.65-1,865.70

Finding the Fourth Proportional to 7,709.08, 11,563.65 and 1,865.70

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Solution

The fourth proportional to 7,709.08, 11,563.65 and 1,865.70 is: 2,798.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,709.08 : 11,563.65 = 1,865.70 : x
  2. Step 2: Convert to fraction form
    7,709.08/11,563.65 = 1,865.70/x
  3. Step 3: Cross multiply
    7,709.08x = 11,563.65 × 1,865.70
  4. Step 4: Simplify right side
    7,709.08x = 21,574,301.81
  5. Step 5: Solve for x
    x = 21,574,301.81/7,709.08
  6. Step 6: Final answer
    x = 2,798.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.