Home / 15,248,995.94-21,043,980-8,279,967.20

Finding the Fourth Proportional to 15,248,995.94, 21,043,980 and 8,279,967.20

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Solution

The fourth proportional to 15,248,995.94, 21,043,980 and 8,279,967.20 is: 11,426,553.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,248,995.94 : 21,043,980 = 8,279,967.20 : x
  2. Step 2: Convert to fraction form
    15,248,995.94/21,043,980 = 8,279,967.20/x
  3. Step 3: Cross multiply
    15,248,995.94x = 21,043,980 × 8,279,967.20
  4. Step 4: Simplify right side
    15,248,995.94x = 174,243,464,157,456
  5. Step 5: Solve for x
    x = 174,243,464,157,456/15,248,995.94
  6. Step 6: Final answer
    x = 11,426,553.25

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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.