Home / 12,864.16-19,298.40-4,101.76

Finding the Fourth Proportional to 12,864.16, 19,298.40 and 4,101.76

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Solution

The fourth proportional to 12,864.16, 19,298.40 and 4,101.76 is: 6,153.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864.16 : 19,298.40 = 4,101.76 : x
  2. Step 2: Convert to fraction form
    12,864.16/19,298.40 = 4,101.76/x
  3. Step 3: Cross multiply
    12,864.16x = 19,298.40 × 4,101.76
  4. Step 4: Simplify right side
    12,864.16x = 79,157,405.18
  5. Step 5: Solve for x
    x = 79,157,405.18/12,864.16
  6. Step 6: Final answer
    x = 6,153.33

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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.