Home / 13,713,208.53-18,926,155.65-8,487,892.72

Finding the Fourth Proportional to 13,713,208.53, 18,926,155.65 and 8,487,892.72

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Solution

The fourth proportional to 13,713,208.53, 18,926,155.65 and 8,487,892.72 is: 11,714,485.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,713,208.53 : 18,926,155.65 = 8,487,892.72 : x
  2. Step 2: Convert to fraction form
    13,713,208.53/18,926,155.65 = 8,487,892.72/x
  3. Step 3: Cross multiply
    13,713,208.53x = 18,926,155.65 × 8,487,892.72
  4. Step 4: Simplify right side
    13,713,208.53x = 160,643,178,759,221.88
  5. Step 5: Solve for x
    x = 160,643,178,759,221.88/13,713,208.53
  6. Step 6: Final answer
    x = 11,714,485.23

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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.