Home / 10,988.99-15,164.37-6,451.06

Finding the Fourth Proportional to 10,988.99, 15,164.37 and 6,451.06

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Solution

The fourth proportional to 10,988.99, 15,164.37 and 6,451.06 is: 8,902.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,988.99 : 15,164.37 = 6,451.06 : x
  2. Step 2: Convert to fraction form
    10,988.99/15,164.37 = 6,451.06/x
  3. Step 3: Cross multiply
    10,988.99x = 15,164.37 × 6,451.06
  4. Step 4: Simplify right side
    10,988.99x = 97,826,222.82
  5. Step 5: Solve for x
    x = 97,826,222.82/10,988.99
  6. Step 6: Final answer
    x = 8,902.20

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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.