Home / 18,933.13-26,127.75-10,980.01

Finding the Fourth Proportional to 18,933.13, 26,127.75 and 10,980.01

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Solution

The fourth proportional to 18,933.13, 26,127.75 and 10,980.01 is: 15,152.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933.13 : 26,127.75 = 10,980.01 : x
  2. Step 2: Convert to fraction form
    18,933.13/26,127.75 = 10,980.01/x
  3. Step 3: Cross multiply
    18,933.13x = 26,127.75 × 10,980.01
  4. Step 4: Simplify right side
    18,933.13x = 286,882,956.28
  5. Step 5: Solve for x
    x = 286,882,956.28/18,933.13
  6. Step 6: Final answer
    x = 15,152.43

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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.