Home / 16,803.04-23,189.34-11,128

Finding the Fourth Proportional to 16,803.04, 23,189.34 and 11,128

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Solution

The fourth proportional to 16,803.04, 23,189.34 and 11,128 is: 15,357.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,803.04 : 23,189.34 = 11,128 : x
  2. Step 2: Convert to fraction form
    16,803.04/23,189.34 = 11,128/x
  3. Step 3: Cross multiply
    16,803.04x = 23,189.34 × 11,128
  4. Step 4: Simplify right side
    16,803.04x = 258,050,975.52
  5. Step 5: Solve for x
    x = 258,050,975.52/16,803.04
  6. Step 6: Final answer
    x = 15,357.40

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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.