Home / 10,702.10-16,133.36-9,988.50

Finding the Fourth Proportional to 10,702.10, 16,133.36 and 9,988.50

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Solution

The fourth proportional to 10,702.10, 16,133.36 and 9,988.50 is: 15,057.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,702.10 : 16,133.36 = 9,988.50 : x
  2. Step 2: Convert to fraction form
    10,702.10/16,133.36 = 9,988.50/x
  3. Step 3: Cross multiply
    10,702.10x = 16,133.36 × 9,988.50
  4. Step 4: Simplify right side
    10,702.10x = 161,148,066.36
  5. Step 5: Solve for x
    x = 161,148,066.36/10,702.10
  6. Step 6: Final answer
    x = 15,057.61

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.