Home / 9,285.37-12,814.49-5,306.40

Finding the Fourth Proportional to 9,285.37, 12,814.49 and 5,306.40

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Solution

The fourth proportional to 9,285.37, 12,814.49 and 5,306.40 is: 7,323.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,285.37 : 12,814.49 = 5,306.40 : x
  2. Step 2: Convert to fraction form
    9,285.37/12,814.49 = 5,306.40/x
  3. Step 3: Cross multiply
    9,285.37x = 12,814.49 × 5,306.40
  4. Step 4: Simplify right side
    9,285.37x = 67,998,809.74
  5. Step 5: Solve for x
    x = 67,998,809.74/9,285.37
  6. Step 6: Final answer
    x = 7,323.22

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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.