Home / 9,285.42-12,813.55-5,306.91

Finding the Fourth Proportional to 9,285.42, 12,813.55 and 5,306.91

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Solution

The fourth proportional to 9,285.42, 12,813.55 and 5,306.91 is: 7,323.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,285.42 : 12,813.55 = 5,306.91 : x
  2. Step 2: Convert to fraction form
    9,285.42/12,813.55 = 5,306.91/x
  3. Step 3: Cross multiply
    9,285.42x = 12,813.55 × 5,306.91
  4. Step 4: Simplify right side
    9,285.42x = 68,000,356.63
  5. Step 5: Solve for x
    x = 68,000,356.63/9,285.42
  6. Step 6: Final answer
    x = 7,323.35

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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.