Home / 18,365.31-27,547.32-7,977.06

Finding the Fourth Proportional to 18,365.31, 27,547.32 and 7,977.06

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Solution

The fourth proportional to 18,365.31, 27,547.32 and 7,977.06 is: 11,965.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,365.31 : 27,547.32 = 7,977.06 : x
  2. Step 2: Convert to fraction form
    18,365.31/27,547.32 = 7,977.06/x
  3. Step 3: Cross multiply
    18,365.31x = 27,547.32 × 7,977.06
  4. Step 4: Simplify right side
    18,365.31x = 219,746,624.48
  5. Step 5: Solve for x
    x = 219,746,624.48/18,365.31
  6. Step 6: Final answer
    x = 11,965.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.