Home / 12,939.84-19,421.28-6,018.24

Finding the Fourth Proportional to 12,939.84, 19,421.28 and 6,018.24

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Solution

The fourth proportional to 12,939.84, 19,421.28 and 6,018.24 is: 9,032.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,939.84 : 19,421.28 = 6,018.24 : x
  2. Step 2: Convert to fraction form
    12,939.84/19,421.28 = 6,018.24/x
  3. Step 3: Cross multiply
    12,939.84x = 19,421.28 × 6,018.24
  4. Step 4: Simplify right side
    12,939.84x = 116,881,924.15
  5. Step 5: Solve for x
    x = 116,881,924.15/12,939.84
  6. Step 6: Final answer
    x = 9,032.72

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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.