Home / 18,269.30-25,211.63-9,885.80

Finding the Fourth Proportional to 18,269.30, 25,211.63 and 9,885.80

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Solution

The fourth proportional to 18,269.30, 25,211.63 and 9,885.80 is: 13,642.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,269.30 : 25,211.63 = 9,885.80 : x
  2. Step 2: Convert to fraction form
    18,269.30/25,211.63 = 9,885.80/x
  3. Step 3: Cross multiply
    18,269.30x = 25,211.63 × 9,885.80
  4. Step 4: Simplify right side
    18,269.30x = 249,237,219.60
  5. Step 5: Solve for x
    x = 249,237,219.60/18,269.30
  6. Step 6: Final answer
    x = 13,642.40

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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.