Home / 14,211.60-21,317.40-9,040.40

Finding the Fourth Proportional to 14,211.60, 21,317.40 and 9,040.40

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Solution

The fourth proportional to 14,211.60, 21,317.40 and 9,040.40 is: 13,560.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,211.60 : 21,317.40 = 9,040.40 : x
  2. Step 2: Convert to fraction form
    14,211.60/21,317.40 = 9,040.40/x
  3. Step 3: Cross multiply
    14,211.60x = 21,317.40 × 9,040.40
  4. Step 4: Simplify right side
    14,211.60x = 192,717,822.96
  5. Step 5: Solve for x
    x = 192,717,822.96/14,211.60
  6. Step 6: Final answer
    x = 13,560.60

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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.