Home / 19,254.74-28,869.64-12,660.93

Finding the Fourth Proportional to 19,254.74, 28,869.64 and 12,660.93

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Solution

The fourth proportional to 19,254.74, 28,869.64 and 12,660.93 is: 18,983.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,254.74 : 28,869.64 = 12,660.93 : x
  2. Step 2: Convert to fraction form
    19,254.74/28,869.64 = 12,660.93/x
  3. Step 3: Cross multiply
    19,254.74x = 28,869.64 × 12,660.93
  4. Step 4: Simplify right side
    19,254.74x = 365,516,459.51
  5. Step 5: Solve for x
    x = 365,516,459.51/19,254.74
  6. Step 6: Final answer
    x = 18,983.20

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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.