Home / 19,113.79-26,379.13-10,938.15

Finding the Fourth Proportional to 19,113.79, 26,379.13 and 10,938.15

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Solution

The fourth proportional to 19,113.79, 26,379.13 and 10,938.15 is: 15,095.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,113.79 : 26,379.13 = 10,938.15 : x
  2. Step 2: Convert to fraction form
    19,113.79/26,379.13 = 10,938.15/x
  3. Step 3: Cross multiply
    19,113.79x = 26,379.13 × 10,938.15
  4. Step 4: Simplify right side
    19,113.79x = 288,538,880.31
  5. Step 5: Solve for x
    x = 288,538,880.31/19,113.79
  6. Step 6: Final answer
    x = 15,095.85

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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.