Home / 12,488.45-18,737.93-11,437.27

Finding the Fourth Proportional to 12,488.45, 18,737.93 and 11,437.27

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Solution

The fourth proportional to 12,488.45, 18,737.93 and 11,437.27 is: 17,160.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,488.45 : 18,737.93 = 11,437.27 : x
  2. Step 2: Convert to fraction form
    12,488.45/18,737.93 = 11,437.27/x
  3. Step 3: Cross multiply
    12,488.45x = 18,737.93 × 11,437.27
  4. Step 4: Simplify right side
    12,488.45x = 214,310,746.40
  5. Step 5: Solve for x
    x = 214,310,746.40/12,488.45
  6. Step 6: Final answer
    x = 17,160.72

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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.