Home / 15,525.80-23,288.70-5,138.60

Finding the Fourth Proportional to 15,525.80, 23,288.70 and 5,138.60

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Solution

The fourth proportional to 15,525.80, 23,288.70 and 5,138.60 is: 7,707.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,525.80 : 23,288.70 = 5,138.60 : x
  2. Step 2: Convert to fraction form
    15,525.80/23,288.70 = 5,138.60/x
  3. Step 3: Cross multiply
    15,525.80x = 23,288.70 × 5,138.60
  4. Step 4: Simplify right side
    15,525.80x = 119,671,313.82
  5. Step 5: Solve for x
    x = 119,671,313.82/15,525.80
  6. Step 6: Final answer
    x = 7,707.90

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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.