Home / 9,159.12-12,639.57-4,967.37

Finding the Fourth Proportional to 9,159.12, 12,639.57 and 4,967.37

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Solution

The fourth proportional to 9,159.12, 12,639.57 and 4,967.37 is: 6,854.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,159.12 : 12,639.57 = 4,967.37 : x
  2. Step 2: Convert to fraction form
    9,159.12/12,639.57 = 4,967.37/x
  3. Step 3: Cross multiply
    9,159.12x = 12,639.57 × 4,967.37
  4. Step 4: Simplify right side
    9,159.12x = 62,785,420.83
  5. Step 5: Solve for x
    x = 62,785,420.83/9,159.12
  6. Step 6: Final answer
    x = 6,854.96

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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.