Home / 10,127.39-15,191.06-3,555.45

Finding the Fourth Proportional to 10,127.39, 15,191.06 and 3,555.45

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Solution

The fourth proportional to 10,127.39, 15,191.06 and 3,555.45 is: 5,333.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,127.39 : 15,191.06 = 3,555.45 : x
  2. Step 2: Convert to fraction form
    10,127.39/15,191.06 = 3,555.45/x
  3. Step 3: Cross multiply
    10,127.39x = 15,191.06 × 3,555.45
  4. Step 4: Simplify right side
    10,127.39x = 54,011,036.50
  5. Step 5: Solve for x
    x = 54,011,036.50/10,127.39
  6. Step 6: Final answer
    x = 5,333.17

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1.5x scale

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.