Home / 12,806.72-19,210.08-3,572

Finding the Fourth Proportional to 12,806.72, 19,210.08 and 3,572

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Solution

The fourth proportional to 12,806.72, 19,210.08 and 3,572 is: 5,358.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,806.72 : 19,210.08 = 3,572 : x
  2. Step 2: Convert to fraction form
    12,806.72/19,210.08 = 3,572/x
  3. Step 3: Cross multiply
    12,806.72x = 19,210.08 × 3,572
  4. Step 4: Simplify right side
    12,806.72x = 68,618,405.76
  5. Step 5: Solve for x
    x = 68,618,405.76/12,806.72
  6. Step 6: Final answer
    x = 5,358.00

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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.