Home / 10,998.30-15,172.48-10,574.06

Finding the Fourth Proportional to 10,998.30, 15,172.48 and 10,574.06

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Solution

The fourth proportional to 10,998.30, 15,172.48 and 10,574.06 is: 14,587.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.30 : 15,172.48 = 10,574.06 : x
  2. Step 2: Convert to fraction form
    10,998.30/15,172.48 = 10,574.06/x
  3. Step 3: Cross multiply
    10,998.30x = 15,172.48 × 10,574.06
  4. Step 4: Simplify right side
    10,998.30x = 160,434,713.87
  5. Step 5: Solve for x
    x = 160,434,713.87/10,998.30
  6. Step 6: Final answer
    x = 14,587.23

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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.