Home / 19,411.55-26,779.50-12,334.17

Finding the Fourth Proportional to 19,411.55, 26,779.50 and 12,334.17

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Solution

The fourth proportional to 19,411.55, 26,779.50 and 12,334.17 is: 17,015.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,411.55 : 26,779.50 = 12,334.17 : x
  2. Step 2: Convert to fraction form
    19,411.55/26,779.50 = 12,334.17/x
  3. Step 3: Cross multiply
    19,411.55x = 26,779.50 × 12,334.17
  4. Step 4: Simplify right side
    19,411.55x = 330,302,905.52
  5. Step 5: Solve for x
    x = 330,302,905.52/19,411.55
  6. Step 6: Final answer
    x = 17,015.80

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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.