Home / 9,985.36-14,981.28-4,146.88

Finding the Fourth Proportional to 9,985.36, 14,981.28 and 4,146.88

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Solution

The fourth proportional to 9,985.36, 14,981.28 and 4,146.88 is: 6,221.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,985.36 : 14,981.28 = 4,146.88 : x
  2. Step 2: Convert to fraction form
    9,985.36/14,981.28 = 4,146.88/x
  3. Step 3: Cross multiply
    9,985.36x = 14,981.28 × 4,146.88
  4. Step 4: Simplify right side
    9,985.36x = 62,125,570.41
  5. Step 5: Solve for x
    x = 62,125,570.41/9,985.36
  6. Step 6: Final answer
    x = 6,221.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.