Home / 14,702.45-20,289.75-7,988.46

Finding the Fourth Proportional to 14,702.45, 20,289.75 and 7,988.46

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Solution

The fourth proportional to 14,702.45, 20,289.75 and 7,988.46 is: 11,024.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,702.45 : 20,289.75 = 7,988.46 : x
  2. Step 2: Convert to fraction form
    14,702.45/20,289.75 = 7,988.46/x
  3. Step 3: Cross multiply
    14,702.45x = 20,289.75 × 7,988.46
  4. Step 4: Simplify right side
    14,702.45x = 162,083,856.29
  5. Step 5: Solve for x
    x = 162,083,856.29/14,702.45
  6. Step 6: Final answer
    x = 11,024.28

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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.