Home / 11,222.40-15,484.14-6,503.88

Finding the Fourth Proportional to 11,222.40, 15,484.14 and 6,503.88

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Solution

The fourth proportional to 11,222.40, 15,484.14 and 6,503.88 is: 8,973.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,222.40 : 15,484.14 = 6,503.88 : x
  2. Step 2: Convert to fraction form
    11,222.40/15,484.14 = 6,503.88/x
  3. Step 3: Cross multiply
    11,222.40x = 15,484.14 × 6,503.88
  4. Step 4: Simplify right side
    11,222.40x = 100,706,988.46
  5. Step 5: Solve for x
    x = 100,706,988.46/11,222.40
  6. Step 6: Final answer
    x = 8,973.75

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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.