Home / 19,988.64-27,586.08-11,607.84

Finding the Fourth Proportional to 19,988.64, 27,586.08 and 11,607.84

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Solution

The fourth proportional to 19,988.64, 27,586.08 and 11,607.84 is: 16,019.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,988.64 : 27,586.08 = 11,607.84 : x
  2. Step 2: Convert to fraction form
    19,988.64/27,586.08 = 11,607.84/x
  3. Step 3: Cross multiply
    19,988.64x = 27,586.08 × 11,607.84
  4. Step 4: Simplify right side
    19,988.64x = 320,214,802.87
  5. Step 5: Solve for x
    x = 320,214,802.87/19,988.64
  6. Step 6: Final answer
    x = 16,019.84

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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.