Home / 13,566.08-18,721.86-8,260.04

Finding the Fourth Proportional to 13,566.08, 18,721.86 and 8,260.04

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Solution

The fourth proportional to 13,566.08, 18,721.86 and 8,260.04 is: 11,399.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,566.08 : 18,721.86 = 8,260.04 : x
  2. Step 2: Convert to fraction form
    13,566.08/18,721.86 = 8,260.04/x
  3. Step 3: Cross multiply
    13,566.08x = 18,721.86 × 8,260.04
  4. Step 4: Simplify right side
    13,566.08x = 154,643,312.47
  5. Step 5: Solve for x
    x = 154,643,312.47/13,566.08
  6. Step 6: Final answer
    x = 11,399.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.