Home / 12,953.89-19,430.84-5,168.17

Finding the Fourth Proportional to 12,953.89, 19,430.84 and 5,168.17

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Solution

The fourth proportional to 12,953.89, 19,430.84 and 5,168.17 is: 7,752.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,953.89 : 19,430.84 = 5,168.17 : x
  2. Step 2: Convert to fraction form
    12,953.89/19,430.84 = 5,168.17/x
  3. Step 3: Cross multiply
    12,953.89x = 19,430.84 × 5,168.17
  4. Step 4: Simplify right side
    12,953.89x = 100,421,761.37
  5. Step 5: Solve for x
    x = 100,421,761.37/12,953.89
  6. Step 6: Final answer
    x = 7,752.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.