Home / 10,100.84-13,938.90-9,802.76

Finding the Fourth Proportional to 10,100.84, 13,938.90 and 9,802.76

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Solution

The fourth proportional to 10,100.84, 13,938.90 and 9,802.76 is: 13,527.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,100.84 : 13,938.90 = 9,802.76 : x
  2. Step 2: Convert to fraction form
    10,100.84/13,938.90 = 9,802.76/x
  3. Step 3: Cross multiply
    10,100.84x = 13,938.90 × 9,802.76
  4. Step 4: Simplify right side
    10,100.84x = 136,639,691.36
  5. Step 5: Solve for x
    x = 136,639,691.36/10,100.84
  6. Step 6: Final answer
    x = 13,527.56

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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.