Home / 9,051.80-12,490.34-5,276.21

Finding the Fourth Proportional to 9,051.80, 12,490.34 and 5,276.21

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Solution

The fourth proportional to 9,051.80, 12,490.34 and 5,276.21 is: 7,280.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,051.80 : 12,490.34 = 5,276.21 : x
  2. Step 2: Convert to fraction form
    9,051.80/12,490.34 = 5,276.21/x
  3. Step 3: Cross multiply
    9,051.80x = 12,490.34 × 5,276.21
  4. Step 4: Simplify right side
    9,051.80x = 65,901,567.98
  5. Step 5: Solve for x
    x = 65,901,567.98/9,051.80
  6. Step 6: Final answer
    x = 7,280.50

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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.