Home / 12,840.68-19,267.13-8,898.01

Finding the Fourth Proportional to 12,840.68, 19,267.13 and 8,898.01

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Solution

The fourth proportional to 12,840.68, 19,267.13 and 8,898.01 is: 13,351.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,840.68 : 19,267.13 = 8,898.01 : x
  2. Step 2: Convert to fraction form
    12,840.68/19,267.13 = 8,898.01/x
  3. Step 3: Cross multiply
    12,840.68x = 19,267.13 × 8,898.01
  4. Step 4: Simplify right side
    12,840.68x = 171,439,089.49
  5. Step 5: Solve for x
    x = 171,439,089.49/12,840.68
  6. Step 6: Final answer
    x = 13,351.24

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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.