Home / 13,158.12-19,737.18-9,651.90

Finding the Fourth Proportional to 13,158.12, 19,737.18 and 9,651.90

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Solution

The fourth proportional to 13,158.12, 19,737.18 and 9,651.90 is: 14,477.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,158.12 : 19,737.18 = 9,651.90 : x
  2. Step 2: Convert to fraction form
    13,158.12/19,737.18 = 9,651.90/x
  3. Step 3: Cross multiply
    13,158.12x = 19,737.18 × 9,651.90
  4. Step 4: Simplify right side
    13,158.12x = 190,501,287.64
  5. Step 5: Solve for x
    x = 190,501,287.64/13,158.12
  6. Step 6: Final answer
    x = 14,477.85

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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.