Home / 15,451.70-21,312.33-10,907.06

Finding the Fourth Proportional to 15,451.70, 21,312.33 and 10,907.06

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Solution

The fourth proportional to 15,451.70, 21,312.33 and 10,907.06 is: 15,043.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,451.70 : 21,312.33 = 10,907.06 : x
  2. Step 2: Convert to fraction form
    15,451.70/21,312.33 = 10,907.06/x
  3. Step 3: Cross multiply
    15,451.70x = 21,312.33 × 10,907.06
  4. Step 4: Simplify right side
    15,451.70x = 232,454,862.05
  5. Step 5: Solve for x
    x = 232,454,862.05/15,451.70
  6. Step 6: Final answer
    x = 15,043.97

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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.