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Finding the Fourth Proportional to 11,135.80, 16,703.70 and 9,710.20

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Solution

The fourth proportional to 11,135.80, 16,703.70 and 9,710.20 is: 14,565.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.80 : 16,703.70 = 9,710.20 : x
  2. Step 2: Convert to fraction form
    11,135.80/16,703.70 = 9,710.20/x
  3. Step 3: Cross multiply
    11,135.80x = 16,703.70 × 9,710.20
  4. Step 4: Simplify right side
    11,135.80x = 162,196,267.74
  5. Step 5: Solve for x
    x = 162,196,267.74/11,135.80
  6. Step 6: Final answer
    x = 14,565.30

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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.