Home / 9,206.08-12,702.18-5,428.95

Finding the Fourth Proportional to 9,206.08, 12,702.18 and 5,428.95

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Solution

The fourth proportional to 9,206.08, 12,702.18 and 5,428.95 is: 7,490.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,206.08 : 12,702.18 = 5,428.95 : x
  2. Step 2: Convert to fraction form
    9,206.08/12,702.18 = 5,428.95/x
  3. Step 3: Cross multiply
    9,206.08x = 12,702.18 × 5,428.95
  4. Step 4: Simplify right side
    9,206.08x = 68,959,500.11
  5. Step 5: Solve for x
    x = 68,959,500.11/9,206.08
  6. Step 6: Final answer
    x = 7,490.65

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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.