Home / 15,656.50-21,617.31-10,077.22

Finding the Fourth Proportional to 15,656.50, 21,617.31 and 10,077.22

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Solution

The fourth proportional to 15,656.50, 21,617.31 and 10,077.22 is: 13,913.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,656.50 : 21,617.31 = 10,077.22 : x
  2. Step 2: Convert to fraction form
    15,656.50/21,617.31 = 10,077.22/x
  3. Step 3: Cross multiply
    15,656.50x = 21,617.31 × 10,077.22
  4. Step 4: Simplify right side
    15,656.50x = 217,842,388.68
  5. Step 5: Solve for x
    x = 217,842,388.68/15,656.50
  6. Step 6: Final answer
    x = 13,913.86

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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.