Home / 10,400.55-14,352.80-5,684.91

Finding the Fourth Proportional to 10,400.55, 14,352.80 and 5,684.91

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Solution

The fourth proportional to 10,400.55, 14,352.80 and 5,684.91 is: 7,845.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,400.55 : 14,352.80 = 5,684.91 : x
  2. Step 2: Convert to fraction form
    10,400.55/14,352.80 = 5,684.91/x
  3. Step 3: Cross multiply
    10,400.55x = 14,352.80 × 5,684.91
  4. Step 4: Simplify right side
    10,400.55x = 81,594,347.82
  5. Step 5: Solve for x
    x = 81,594,347.82/10,400.55
  6. Step 6: Final answer
    x = 7,845.20

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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.