Home / 19,378.02-26,740.50-11,310.72

Finding the Fourth Proportional to 19,378.02, 26,740.50 and 11,310.72

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Solution

The fourth proportional to 19,378.02, 26,740.50 and 11,310.72 is: 15,608.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,378.02 : 26,740.50 = 11,310.72 : x
  2. Step 2: Convert to fraction form
    19,378.02/26,740.50 = 11,310.72/x
  3. Step 3: Cross multiply
    19,378.02x = 26,740.50 × 11,310.72
  4. Step 4: Simplify right side
    19,378.02x = 302,454,308.16
  5. Step 5: Solve for x
    x = 302,454,308.16/19,378.02
  6. Step 6: Final answer
    x = 15,608.11

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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.