Home / 12,511.36-18,754.08-5,586.40

Finding the Fourth Proportional to 12,511.36, 18,754.08 and 5,586.40

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Solution

The fourth proportional to 12,511.36, 18,754.08 and 5,586.40 is: 8,373.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.36 : 18,754.08 = 5,586.40 : x
  2. Step 2: Convert to fraction form
    12,511.36/18,754.08 = 5,586.40/x
  3. Step 3: Cross multiply
    12,511.36x = 18,754.08 × 5,586.40
  4. Step 4: Simplify right side
    12,511.36x = 104,767,792.51
  5. Step 5: Solve for x
    x = 104,767,792.51/12,511.36
  6. Step 6: Final answer
    x = 8,373.81

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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.