Home / 18,870.16-26,034.18-11,318.94

Finding the Fourth Proportional to 18,870.16, 26,034.18 and 11,318.94

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Solution

The fourth proportional to 18,870.16, 26,034.18 and 11,318.94 is: 15,616.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,870.16 : 26,034.18 = 11,318.94 : x
  2. Step 2: Convert to fraction form
    18,870.16/26,034.18 = 11,318.94/x
  3. Step 3: Cross multiply
    18,870.16x = 26,034.18 × 11,318.94
  4. Step 4: Simplify right side
    18,870.16x = 294,679,134.60
  5. Step 5: Solve for x
    x = 294,679,134.60/18,870.16
  6. Step 6: Final answer
    x = 15,616.14

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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.