Home / 11,100.04-15,320.10-6,384.76

Finding the Fourth Proportional to 11,100.04, 15,320.10 and 6,384.76

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Solution

The fourth proportional to 11,100.04, 15,320.10 and 6,384.76 is: 8,812.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,100.04 : 15,320.10 = 6,384.76 : x
  2. Step 2: Convert to fraction form
    11,100.04/15,320.10 = 6,384.76/x
  3. Step 3: Cross multiply
    11,100.04x = 15,320.10 × 6,384.76
  4. Step 4: Simplify right side
    11,100.04x = 97,815,161.68
  5. Step 5: Solve for x
    x = 97,815,161.68/11,100.04
  6. Step 6: Final answer
    x = 8,812.14

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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.