Home / 9,905.76-14,848.90-4,715.28

Finding the Fourth Proportional to 9,905.76, 14,848.90 and 4,715.28

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Solution

The fourth proportional to 9,905.76, 14,848.90 and 4,715.28 is: 7,068.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,905.76 : 14,848.90 = 4,715.28 : x
  2. Step 2: Convert to fraction form
    9,905.76/14,848.90 = 4,715.28/x
  3. Step 3: Cross multiply
    9,905.76x = 14,848.90 × 4,715.28
  4. Step 4: Simplify right side
    9,905.76x = 70,016,721.19
  5. Step 5: Solve for x
    x = 70,016,721.19/9,905.76
  6. Step 6: Final answer
    x = 7,068.28

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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.