Home / 15,362.19-21,200.40-8,649.05

Finding the Fourth Proportional to 15,362.19, 21,200.40 and 8,649.05

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Solution

The fourth proportional to 15,362.19, 21,200.40 and 8,649.05 is: 11,936.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,362.19 : 21,200.40 = 8,649.05 : x
  2. Step 2: Convert to fraction form
    15,362.19/21,200.40 = 8,649.05/x
  3. Step 3: Cross multiply
    15,362.19x = 21,200.40 × 8,649.05
  4. Step 4: Simplify right side
    15,362.19x = 183,363,213.62
  5. Step 5: Solve for x
    x = 183,363,213.62/15,362.19
  6. Step 6: Final answer
    x = 11,936.01

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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.