Home / 18,934.61-26,127.95-10,977.30

Finding the Fourth Proportional to 18,934.61, 26,127.95 and 10,977.30

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Solution

The fourth proportional to 18,934.61, 26,127.95 and 10,977.30 is: 15,147.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934.61 : 26,127.95 = 10,977.30 : x
  2. Step 2: Convert to fraction form
    18,934.61/26,127.95 = 10,977.30/x
  3. Step 3: Cross multiply
    18,934.61x = 26,127.95 × 10,977.30
  4. Step 4: Simplify right side
    18,934.61x = 286,814,290.65
  5. Step 5: Solve for x
    x = 286,814,290.65/18,934.61
  6. Step 6: Final answer
    x = 15,147.62

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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.