Home / 19,106.92-28,643.28-7,417.36

Finding the Fourth Proportional to 19,106.92, 28,643.28 and 7,417.36

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Solution

The fourth proportional to 19,106.92, 28,643.28 and 7,417.36 is: 11,119.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,106.92 : 28,643.28 = 7,417.36 : x
  2. Step 2: Convert to fraction form
    19,106.92/28,643.28 = 7,417.36/x
  3. Step 3: Cross multiply
    19,106.92x = 28,643.28 × 7,417.36
  4. Step 4: Simplify right side
    19,106.92x = 212,457,519.34
  5. Step 5: Solve for x
    x = 212,457,519.34/19,106.92
  6. Step 6: Final answer
    x = 11,119.40

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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.