Home / 9,159.06-12,639.39-4,967.28

Finding the Fourth Proportional to 9,159.06, 12,639.39 and 4,967.28

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Solution

The fourth proportional to 9,159.06, 12,639.39 and 4,967.28 is: 6,854.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,159.06 : 12,639.39 = 4,967.28 : x
  2. Step 2: Convert to fraction form
    9,159.06/12,639.39 = 4,967.28/x
  3. Step 3: Cross multiply
    9,159.06x = 12,639.39 × 4,967.28
  4. Step 4: Simplify right side
    9,159.06x = 62,783,389.16
  5. Step 5: Solve for x
    x = 62,783,389.16/9,159.06
  6. Step 6: Final answer
    x = 6,854.79

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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.