Home / 11,538.02-15,931.38-9,015.77

Finding the Fourth Proportional to 11,538.02, 15,931.38 and 9,015.77

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Solution

The fourth proportional to 11,538.02, 15,931.38 and 9,015.77 is: 12,448.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,538.02 : 15,931.38 = 9,015.77 : x
  2. Step 2: Convert to fraction form
    11,538.02/15,931.38 = 9,015.77/x
  3. Step 3: Cross multiply
    11,538.02x = 15,931.38 × 9,015.77
  4. Step 4: Simplify right side
    11,538.02x = 143,633,657.86
  5. Step 5: Solve for x
    x = 143,633,657.86/11,538.02
  6. Step 6: Final answer
    x = 12,448.73

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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.