Home / 13,474.79-18,595.23-7,810.64

Finding the Fourth Proportional to 13,474.79, 18,595.23 and 7,810.64

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Solution

The fourth proportional to 13,474.79, 18,595.23 and 7,810.64 is: 10,778.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,474.79 : 18,595.23 = 7,810.64 : x
  2. Step 2: Convert to fraction form
    13,474.79/18,595.23 = 7,810.64/x
  3. Step 3: Cross multiply
    13,474.79x = 18,595.23 × 7,810.64
  4. Step 4: Simplify right side
    13,474.79x = 145,240,554.27
  5. Step 5: Solve for x
    x = 145,240,554.27/13,474.79
  6. Step 6: Final answer
    x = 10,778.69

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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.