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Finding the Fourth Proportional to 14,692.15, 20,270.10 and 9,390.07

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Solution

The fourth proportional to 14,692.15, 20,270.10 and 9,390.07 is: 12,955.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,692.15 : 20,270.10 = 9,390.07 : x
  2. Step 2: Convert to fraction form
    14,692.15/20,270.10 = 9,390.07/x
  3. Step 3: Cross multiply
    14,692.15x = 20,270.10 × 9,390.07
  4. Step 4: Simplify right side
    14,692.15x = 190,337,657.91
  5. Step 5: Solve for x
    x = 190,337,657.91/14,692.15
  6. Step 6: Final answer
    x = 12,955.06

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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.