Home / 9,211.60-13,795.80-5,712.40

Finding the Fourth Proportional to 9,211.60, 13,795.80 and 5,712.40

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Solution

The fourth proportional to 9,211.60, 13,795.80 and 5,712.40 is: 8,555.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,211.60 : 13,795.80 = 5,712.40 : x
  2. Step 2: Convert to fraction form
    9,211.60/13,795.80 = 5,712.40/x
  3. Step 3: Cross multiply
    9,211.60x = 13,795.80 × 5,712.40
  4. Step 4: Simplify right side
    9,211.60x = 78,807,127.92
  5. Step 5: Solve for x
    x = 78,807,127.92/9,211.60
  6. Step 6: Final answer
    x = 8,555.21

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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.