Home / 19,161.60-26,459.67-12,892.20

Finding the Fourth Proportional to 19,161.60, 26,459.67 and 12,892.20

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Solution

The fourth proportional to 19,161.60, 26,459.67 and 12,892.20 is: 17,802.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,161.60 : 26,459.67 = 12,892.20 : x
  2. Step 2: Convert to fraction form
    19,161.60/26,459.67 = 12,892.20/x
  3. Step 3: Cross multiply
    19,161.60x = 26,459.67 × 12,892.20
  4. Step 4: Simplify right side
    19,161.60x = 341,123,357.57
  5. Step 5: Solve for x
    x = 341,123,357.57/19,161.60
  6. Step 6: Final answer
    x = 17,802.45

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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.