Home / 19,918.02-27,487.35-10,965.81

Finding the Fourth Proportional to 19,918.02, 27,487.35 and 10,965.81

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Solution

The fourth proportional to 19,918.02, 27,487.35 and 10,965.81 is: 15,133.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918.02 : 27,487.35 = 10,965.81 : x
  2. Step 2: Convert to fraction form
    19,918.02/27,487.35 = 10,965.81/x
  3. Step 3: Cross multiply
    19,918.02x = 27,487.35 × 10,965.81
  4. Step 4: Simplify right side
    19,918.02x = 301,421,057.50
  5. Step 5: Solve for x
    x = 301,421,057.50/19,918.02
  6. Step 6: Final answer
    x = 15,133.08

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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.