Home / 8,898.32-12,280.59-5,121.62

Finding the Fourth Proportional to 8,898.32, 12,280.59 and 5,121.62

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Solution

The fourth proportional to 8,898.32, 12,280.59 and 5,121.62 is: 7,068.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,898.32 : 12,280.59 = 5,121.62 : x
  2. Step 2: Convert to fraction form
    8,898.32/12,280.59 = 5,121.62/x
  3. Step 3: Cross multiply
    8,898.32x = 12,280.59 × 5,121.62
  4. Step 4: Simplify right side
    8,898.32x = 62,896,546.06
  5. Step 5: Solve for x
    x = 62,896,546.06/8,898.32
  6. Step 6: Final answer
    x = 7,068.37

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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.