Home / 18,869.18-28,307.16-6,219.60

Finding the Fourth Proportional to 18,869.18, 28,307.16 and 6,219.60

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Solution

The fourth proportional to 18,869.18, 28,307.16 and 6,219.60 is: 9,330.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,869.18 : 28,307.16 = 6,219.60 : x
  2. Step 2: Convert to fraction form
    18,869.18/28,307.16 = 6,219.60/x
  3. Step 3: Cross multiply
    18,869.18x = 28,307.16 × 6,219.60
  4. Step 4: Simplify right side
    18,869.18x = 176,059,212.34
  5. Step 5: Solve for x
    x = 176,059,212.34/18,869.18
  6. Step 6: Final answer
    x = 9,330.52

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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.