Home / 13,730.02-18,946.92-7,442.26

Finding the Fourth Proportional to 13,730.02, 18,946.92 and 7,442.26

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Solution

The fourth proportional to 13,730.02, 18,946.92 and 7,442.26 is: 10,270.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,730.02 : 18,946.92 = 7,442.26 : x
  2. Step 2: Convert to fraction form
    13,730.02/18,946.92 = 7,442.26/x
  3. Step 3: Cross multiply
    13,730.02x = 18,946.92 × 7,442.26
  4. Step 4: Simplify right side
    13,730.02x = 141,007,904.84
  5. Step 5: Solve for x
    x = 141,007,904.84/13,730.02
  6. Step 6: Final answer
    x = 10,270.04

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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.