Home / 19,140.50-26,402.88-11,957.96

Finding the Fourth Proportional to 19,140.50, 26,402.88 and 11,957.96

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Solution

The fourth proportional to 19,140.50, 26,402.88 and 11,957.96 is: 16,495.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,140.50 : 26,402.88 = 11,957.96 : x
  2. Step 2: Convert to fraction form
    19,140.50/26,402.88 = 11,957.96/x
  3. Step 3: Cross multiply
    19,140.50x = 26,402.88 × 11,957.96
  4. Step 4: Simplify right side
    19,140.50x = 315,724,582.92
  5. Step 5: Solve for x
    x = 315,724,582.92/19,140.50
  6. Step 6: Final answer
    x = 16,495.11

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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.