Home / 18,368.35-25,348.34-9,984.85

Finding the Fourth Proportional to 18,368.35, 25,348.34 and 9,984.85

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Solution

The fourth proportional to 18,368.35, 25,348.34 and 9,984.85 is: 13,779.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,368.35 : 25,348.34 = 9,984.85 : x
  2. Step 2: Convert to fraction form
    18,368.35/25,348.34 = 9,984.85/x
  3. Step 3: Cross multiply
    18,368.35x = 25,348.34 × 9,984.85
  4. Step 4: Simplify right side
    18,368.35x = 253,099,259.35
  5. Step 5: Solve for x
    x = 253,099,259.35/18,368.35
  6. Step 6: Final answer
    x = 13,779.10

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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.