Home / 16,820.32-23,211.75-9,747.40

Finding the Fourth Proportional to 16,820.32, 23,211.75 and 9,747.40

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Solution

The fourth proportional to 16,820.32, 23,211.75 and 9,747.40 is: 13,451.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,820.32 : 23,211.75 = 9,747.40 : x
  2. Step 2: Convert to fraction form
    16,820.32/23,211.75 = 9,747.40/x
  3. Step 3: Cross multiply
    16,820.32x = 23,211.75 × 9,747.40
  4. Step 4: Simplify right side
    16,820.32x = 226,254,211.95
  5. Step 5: Solve for x
    x = 226,254,211.95/16,820.32
  6. Step 6: Final answer
    x = 13,451.24

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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.