Home / 13,770.13-19,002.67-7,482.55

Finding the Fourth Proportional to 13,770.13, 19,002.67 and 7,482.55

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Solution

The fourth proportional to 13,770.13, 19,002.67 and 7,482.55 is: 10,325.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,770.13 : 19,002.67 = 7,482.55 : x
  2. Step 2: Convert to fraction form
    13,770.13/19,002.67 = 7,482.55/x
  3. Step 3: Cross multiply
    13,770.13x = 19,002.67 × 7,482.55
  4. Step 4: Simplify right side
    13,770.13x = 142,188,428.41
  5. Step 5: Solve for x
    x = 142,188,428.41/13,770.13
  6. Step 6: Final answer
    x = 10,325.86

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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.