Home / 9,300.12-12,830.50-5,319.07

Finding the Fourth Proportional to 9,300.12, 12,830.50 and 5,319.07

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Solution

The fourth proportional to 9,300.12, 12,830.50 and 5,319.07 is: 7,338.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,300.12 : 12,830.50 = 5,319.07 : x
  2. Step 2: Convert to fraction form
    9,300.12/12,830.50 = 5,319.07/x
  3. Step 3: Cross multiply
    9,300.12x = 12,830.50 × 5,319.07
  4. Step 4: Simplify right side
    9,300.12x = 68,246,302.21
  5. Step 5: Solve for x
    x = 68,246,302.21/9,300.12
  6. Step 6: Final answer
    x = 7,338.22

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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.