Home / 9,159.12-12,639.69-4,967.46

Finding the Fourth Proportional to 9,159.12, 12,639.69 and 4,967.46

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Solution

The fourth proportional to 9,159.12, 12,639.69 and 4,967.46 is: 6,855.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,159.12 : 12,639.69 = 4,967.46 : x
  2. Step 2: Convert to fraction form
    9,159.12/12,639.69 = 4,967.46/x
  3. Step 3: Cross multiply
    9,159.12x = 12,639.69 × 4,967.46
  4. Step 4: Simplify right side
    9,159.12x = 62,787,154.49
  5. Step 5: Solve for x
    x = 62,787,154.49/9,159.12
  6. Step 6: Final answer
    x = 6,855.15

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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.