Home / 9,315.16-13,959.16-4,319.06

Finding the Fourth Proportional to 9,315.16, 13,959.16 and 4,319.06

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Solution

The fourth proportional to 9,315.16, 13,959.16 and 4,319.06 is: 6,472.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,315.16 : 13,959.16 = 4,319.06 : x
  2. Step 2: Convert to fraction form
    9,315.16/13,959.16 = 4,319.06/x
  3. Step 3: Cross multiply
    9,315.16x = 13,959.16 × 4,319.06
  4. Step 4: Simplify right side
    9,315.16x = 60,290,470.54
  5. Step 5: Solve for x
    x = 60,290,470.54/9,315.16
  6. Step 6: Final answer
    x = 6,472.29

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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.