Home / 10,280.39-15,448.32-5,603.85

Finding the Fourth Proportional to 10,280.39, 15,448.32 and 5,603.85

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Solution

The fourth proportional to 10,280.39, 15,448.32 and 5,603.85 is: 8,420.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,280.39 : 15,448.32 = 5,603.85 : x
  2. Step 2: Convert to fraction form
    10,280.39/15,448.32 = 5,603.85/x
  3. Step 3: Cross multiply
    10,280.39x = 15,448.32 × 5,603.85
  4. Step 4: Simplify right side
    10,280.39x = 86,570,068.03
  5. Step 5: Solve for x
    x = 86,570,068.03/10,280.39
  6. Step 6: Final answer
    x = 8,420.90

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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.