Home / 10,905.49-15,048.79-6,125.18

Finding the Fourth Proportional to 10,905.49, 15,048.79 and 6,125.18

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Solution

The fourth proportional to 10,905.49, 15,048.79 and 6,125.18 is: 8,452.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905.49 : 15,048.79 = 6,125.18 : x
  2. Step 2: Convert to fraction form
    10,905.49/15,048.79 = 6,125.18/x
  3. Step 3: Cross multiply
    10,905.49x = 15,048.79 × 6,125.18
  4. Step 4: Simplify right side
    10,905.49x = 92,176,547.53
  5. Step 5: Solve for x
    x = 92,176,547.53/10,905.49
  6. Step 6: Final answer
    x = 8,452.31

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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.