Home / 19,043.76-26,280.07-11,387.89

Finding the Fourth Proportional to 19,043.76, 26,280.07 and 11,387.89

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Solution

The fourth proportional to 19,043.76, 26,280.07 and 11,387.89 is: 15,715.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,043.76 : 26,280.07 = 11,387.89 : x
  2. Step 2: Convert to fraction form
    19,043.76/26,280.07 = 11,387.89/x
  3. Step 3: Cross multiply
    19,043.76x = 26,280.07 × 11,387.89
  4. Step 4: Simplify right side
    19,043.76x = 299,274,582.76
  5. Step 5: Solve for x
    x = 299,274,582.76/19,043.76
  6. Step 6: Final answer
    x = 15,715.10

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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.