Home / 18,870.41-26,042.52-11,316.60

Finding the Fourth Proportional to 18,870.41, 26,042.52 and 11,316.60

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Solution

The fourth proportional to 18,870.41, 26,042.52 and 11,316.60 is: 15,617.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,870.41 : 26,042.52 = 11,316.60 : x
  2. Step 2: Convert to fraction form
    18,870.41/26,042.52 = 11,316.60/x
  3. Step 3: Cross multiply
    18,870.41x = 26,042.52 × 11,316.60
  4. Step 4: Simplify right side
    18,870.41x = 294,712,803.05
  5. Step 5: Solve for x
    x = 294,712,803.05/18,870.41
  6. Step 6: Final answer
    x = 15,617.72

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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.