Home / 15,606.94-21,539.04-8,534.40

Finding the Fourth Proportional to 15,606.94, 21,539.04 and 8,534.40

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Solution

The fourth proportional to 15,606.94, 21,539.04 and 8,534.40 is: 11,778.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,606.94 : 21,539.04 = 8,534.40 : x
  2. Step 2: Convert to fraction form
    15,606.94/21,539.04 = 8,534.40/x
  3. Step 3: Cross multiply
    15,606.94x = 21,539.04 × 8,534.40
  4. Step 4: Simplify right side
    15,606.94x = 183,822,782.98
  5. Step 5: Solve for x
    x = 183,822,782.98/15,606.94
  6. Step 6: Final answer
    x = 11,778.27

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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.