Home / 13,125.50-19,692.05-4,242.18

Finding the Fourth Proportional to 13,125.50, 19,692.05 and 4,242.18

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Solution

The fourth proportional to 13,125.50, 19,692.05 and 4,242.18 is: 6,364.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125.50 : 19,692.05 = 4,242.18 : x
  2. Step 2: Convert to fraction form
    13,125.50/19,692.05 = 4,242.18/x
  3. Step 3: Cross multiply
    13,125.50x = 19,692.05 × 4,242.18
  4. Step 4: Simplify right side
    13,125.50x = 83,537,220.67
  5. Step 5: Solve for x
    x = 83,537,220.67/13,125.50
  6. Step 6: Final answer
    x = 6,364.50

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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.