Home / 19,470.81-26,869.68-10,518.28

Finding the Fourth Proportional to 19,470.81, 26,869.68 and 10,518.28

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Solution

The fourth proportional to 19,470.81, 26,869.68 and 10,518.28 is: 14,515.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,470.81 : 26,869.68 = 10,518.28 : x
  2. Step 2: Convert to fraction form
    19,470.81/26,869.68 = 10,518.28/x
  3. Step 3: Cross multiply
    19,470.81x = 26,869.68 × 10,518.28
  4. Step 4: Simplify right side
    19,470.81x = 282,622,901.72
  5. Step 5: Solve for x
    x = 282,622,901.72/19,470.81
  6. Step 6: Final answer
    x = 14,515.21

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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.