Home / 9,159.28-12,639.78-4,967.50

Finding the Fourth Proportional to 9,159.28, 12,639.78 and 4,967.50

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Solution

The fourth proportional to 9,159.28, 12,639.78 and 4,967.50 is: 6,855.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,159.28 : 12,639.78 = 4,967.50 : x
  2. Step 2: Convert to fraction form
    9,159.28/12,639.78 = 4,967.50/x
  3. Step 3: Cross multiply
    9,159.28x = 12,639.78 × 4,967.50
  4. Step 4: Simplify right side
    9,159.28x = 62,788,107.15
  5. Step 5: Solve for x
    x = 62,788,107.15/9,159.28
  6. Step 6: Final answer
    x = 6,855.14

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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.