Home / 8,737.74-12,054.96-5,378.40

Finding the Fourth Proportional to 8,737.74, 12,054.96 and 5,378.40

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Solution

The fourth proportional to 8,737.74, 12,054.96 and 5,378.40 is: 7,420.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,737.74 : 12,054.96 = 5,378.40 : x
  2. Step 2: Convert to fraction form
    8,737.74/12,054.96 = 5,378.40/x
  3. Step 3: Cross multiply
    8,737.74x = 12,054.96 × 5,378.40
  4. Step 4: Simplify right side
    8,737.74x = 64,836,396.86
  5. Step 5: Solve for x
    x = 64,836,396.86/8,737.74
  6. Step 6: Final answer
    x = 7,420.27

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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.