Home / 9,315-13,972.92-3,470.16

Finding the Fourth Proportional to 9,315, 13,972.92 and 3,470.16

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Solution

The fourth proportional to 9,315, 13,972.92 and 3,470.16 is: 5,205.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,315 : 13,972.92 = 3,470.16 : x
  2. Step 2: Convert to fraction form
    9,315/13,972.92 = 3,470.16/x
  3. Step 3: Cross multiply
    9,315x = 13,972.92 × 3,470.16
  4. Step 4: Simplify right side
    9,315x = 48,488,268.07
  5. Step 5: Solve for x
    x = 48,488,268.07/9,315
  6. Step 6: Final answer
    x = 5,205.40

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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.