Home / 10,280.04-15,329.88-10,186.54

Finding the Fourth Proportional to 10,280.04, 15,329.88 and 10,186.54

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Solution

The fourth proportional to 10,280.04, 15,329.88 and 10,186.54 is: 15,190.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,280.04 : 15,329.88 = 10,186.54 : x
  2. Step 2: Convert to fraction form
    10,280.04/15,329.88 = 10,186.54/x
  3. Step 3: Cross multiply
    10,280.04x = 15,329.88 × 10,186.54
  4. Step 4: Simplify right side
    10,280.04x = 156,158,435.82
  5. Step 5: Solve for x
    x = 156,158,435.82/10,280.04
  6. Step 6: Final answer
    x = 15,190.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.