Home / 13,206.16-19,810.32-5,415.04

Finding the Fourth Proportional to 13,206.16, 19,810.32 and 5,415.04

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Solution

The fourth proportional to 13,206.16, 19,810.32 and 5,415.04 is: 8,123.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.16 : 19,810.32 = 5,415.04 : x
  2. Step 2: Convert to fraction form
    13,206.16/19,810.32 = 5,415.04/x
  3. Step 3: Cross multiply
    13,206.16x = 19,810.32 × 5,415.04
  4. Step 4: Simplify right side
    13,206.16x = 107,273,675.21
  5. Step 5: Solve for x
    x = 107,273,675.21/13,206.16
  6. Step 6: Final answer
    x = 8,123.00

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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.