Home / 15,690.12-23,527.60-9,118.20

Finding the Fourth Proportional to 15,690.12, 23,527.60 and 9,118.20

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Solution

The fourth proportional to 15,690.12, 23,527.60 and 9,118.20 is: 13,672.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,690.12 : 23,527.60 = 9,118.20 : x
  2. Step 2: Convert to fraction form
    15,690.12/23,527.60 = 9,118.20/x
  3. Step 3: Cross multiply
    15,690.12x = 23,527.60 × 9,118.20
  4. Step 4: Simplify right side
    15,690.12x = 214,529,362.32
  5. Step 5: Solve for x
    x = 214,529,362.32/15,690.12
  6. Step 6: Final answer
    x = 13,672.89

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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.