Home / 14,159.82-21,215.13-7,574.22

Finding the Fourth Proportional to 14,159.82, 21,215.13 and 7,574.22

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Solution

The fourth proportional to 14,159.82, 21,215.13 and 7,574.22 is: 11,348.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,159.82 : 21,215.13 = 7,574.22 : x
  2. Step 2: Convert to fraction form
    14,159.82/21,215.13 = 7,574.22/x
  3. Step 3: Cross multiply
    14,159.82x = 21,215.13 × 7,574.22
  4. Step 4: Simplify right side
    14,159.82x = 160,688,033.55
  5. Step 5: Solve for x
    x = 160,688,033.55/14,159.82
  6. Step 6: Final answer
    x = 11,348.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.