Home / 19,124.78-26,381.50-12,038.90

Finding the Fourth Proportional to 19,124.78, 26,381.50 and 12,038.90

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Solution

The fourth proportional to 19,124.78, 26,381.50 and 12,038.90 is: 16,606.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,124.78 : 26,381.50 = 12,038.90 : x
  2. Step 2: Convert to fraction form
    19,124.78/26,381.50 = 12,038.90/x
  3. Step 3: Cross multiply
    19,124.78x = 26,381.50 × 12,038.90
  4. Step 4: Simplify right side
    19,124.78x = 317,604,078.35
  5. Step 5: Solve for x
    x = 317,604,078.35/19,124.78
  6. Step 6: Final answer
    x = 16,606.94

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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.