Home / 15,210,962-20,991,127.80-8,335,714.64

Finding the Fourth Proportional to 15,210,962, 20,991,127.80 and 8,335,714.64

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Solution

The fourth proportional to 15,210,962, 20,991,127.80 and 8,335,714.64 is: 11,503,286.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,210,962 : 20,991,127.80 = 8,335,714.64 : x
  2. Step 2: Convert to fraction form
    15,210,962/20,991,127.80 = 8,335,714.64/x
  3. Step 3: Cross multiply
    15,210,962x = 20,991,127.80 × 8,335,714.64
  4. Step 4: Simplify right side
    15,210,962x = 174,976,051,312,571
  5. Step 5: Solve for x
    x = 174,976,051,312,571/15,210,962
  6. Step 6: Final answer
    x = 11,503,286.33

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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.