Home / 15,451.19-21,320.68-10,071.17

Finding the Fourth Proportional to 15,451.19, 21,320.68 and 10,071.17

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Solution

The fourth proportional to 15,451.19, 21,320.68 and 10,071.17 is: 13,896.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,451.19 : 21,320.68 = 10,071.17 : x
  2. Step 2: Convert to fraction form
    15,451.19/21,320.68 = 10,071.17/x
  3. Step 3: Cross multiply
    15,451.19x = 21,320.68 × 10,071.17
  4. Step 4: Simplify right side
    15,451.19x = 214,724,192.80
  5. Step 5: Solve for x
    x = 214,724,192.80/15,451.19
  6. Step 6: Final answer
    x = 13,896.94

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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.