Home / 17,557.80-26,336.70-10,991.40

Finding the Fourth Proportional to 17,557.80, 26,336.70 and 10,991.40

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Solution

The fourth proportional to 17,557.80, 26,336.70 and 10,991.40 is: 16,487.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,557.80 : 26,336.70 = 10,991.40 : x
  2. Step 2: Convert to fraction form
    17,557.80/26,336.70 = 10,991.40/x
  3. Step 3: Cross multiply
    17,557.80x = 26,336.70 × 10,991.40
  4. Step 4: Simplify right side
    17,557.80x = 289,477,204.38
  5. Step 5: Solve for x
    x = 289,477,204.38/17,557.80
  6. Step 6: Final answer
    x = 16,487.10

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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.