Home / 10,355.77-14,291.12-5,640.04

Finding the Fourth Proportional to 10,355.77, 14,291.12 and 5,640.04

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Solution

The fourth proportional to 10,355.77, 14,291.12 and 5,640.04 is: 7,783.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,355.77 : 14,291.12 = 5,640.04 : x
  2. Step 2: Convert to fraction form
    10,355.77/14,291.12 = 5,640.04/x
  3. Step 3: Cross multiply
    10,355.77x = 14,291.12 × 5,640.04
  4. Step 4: Simplify right side
    10,355.77x = 80,602,488.44
  5. Step 5: Solve for x
    x = 80,602,488.44/10,355.77
  6. Step 6: Final answer
    x = 7,783.34

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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.