Home / 15,538,279.08-21,456,364.68-9,747,015.60

Finding the Fourth Proportional to 15,538,279.08, 21,456,364.68 and 9,747,015.60

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Solution

The fourth proportional to 15,538,279.08, 21,456,364.68 and 9,747,015.60 is: 13,459,374.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,538,279.08 : 21,456,364.68 = 9,747,015.60 : x
  2. Step 2: Convert to fraction form
    15,538,279.08/21,456,364.68 = 9,747,015.60/x
  3. Step 3: Cross multiply
    15,538,279.08x = 21,456,364.68 × 9,747,015.60
  4. Step 4: Simplify right side
    15,538,279.08x = 209,135,521,255,249
  5. Step 5: Solve for x
    x = 209,135,521,255,249/15,538,279.08
  6. Step 6: Final answer
    x = 13,459,374.76

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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.