Home / 12,849.12-17,730.36-7,260.12

Finding the Fourth Proportional to 12,849.12, 17,730.36 and 7,260.12

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Solution

The fourth proportional to 12,849.12, 17,730.36 and 7,260.12 is: 10,018.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,849.12 : 17,730.36 = 7,260.12 : x
  2. Step 2: Convert to fraction form
    12,849.12/17,730.36 = 7,260.12/x
  3. Step 3: Cross multiply
    12,849.12x = 17,730.36 × 7,260.12
  4. Step 4: Simplify right side
    12,849.12x = 128,724,541.24
  5. Step 5: Solve for x
    x = 128,724,541.24/12,849.12
  6. Step 6: Final answer
    x = 10,018.16

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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.