Home / 18,934.32-26,127.80-10,870.44

Finding the Fourth Proportional to 18,934.32, 26,127.80 and 10,870.44

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Solution

The fourth proportional to 18,934.32, 26,127.80 and 10,870.44 is: 15,000.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934.32 : 26,127.80 = 10,870.44 : x
  2. Step 2: Convert to fraction form
    18,934.32/26,127.80 = 10,870.44/x
  3. Step 3: Cross multiply
    18,934.32x = 26,127.80 × 10,870.44
  4. Step 4: Simplify right side
    18,934.32x = 284,020,682.23
  5. Step 5: Solve for x
    x = 284,020,682.23/18,934.32
  6. Step 6: Final answer
    x = 15,000.31

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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.