Home / 18,870.04-26,039.64-10,486

Finding the Fourth Proportional to 18,870.04, 26,039.64 and 10,486

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Solution

The fourth proportional to 18,870.04, 26,039.64 and 10,486 is: 14,470.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,870.04 : 26,039.64 = 10,486 : x
  2. Step 2: Convert to fraction form
    18,870.04/26,039.64 = 10,486/x
  3. Step 3: Cross multiply
    18,870.04x = 26,039.64 × 10,486
  4. Step 4: Simplify right side
    18,870.04x = 273,051,665.04
  5. Step 5: Solve for x
    x = 273,051,665.04/18,870.04
  6. Step 6: Final answer
    x = 14,470.12

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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.