Home / 15,349.20-23,009.40-12,015.60

Finding the Fourth Proportional to 15,349.20, 23,009.40 and 12,015.60

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Solution

The fourth proportional to 15,349.20, 23,009.40 and 12,015.60 is: 18,012.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,349.20 : 23,009.40 = 12,015.60 : x
  2. Step 2: Convert to fraction form
    15,349.20/23,009.40 = 12,015.60/x
  3. Step 3: Cross multiply
    15,349.20x = 23,009.40 × 12,015.60
  4. Step 4: Simplify right side
    15,349.20x = 276,471,746.64
  5. Step 5: Solve for x
    x = 276,471,746.64/15,349.20
  6. Step 6: Final answer
    x = 18,012.13

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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.