Home / 9,268.08-12,784.60-6,430.36

Finding the Fourth Proportional to 9,268.08, 12,784.60 and 6,430.36

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Solution

The fourth proportional to 9,268.08, 12,784.60 and 6,430.36 is: 8,870.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,268.08 : 12,784.60 = 6,430.36 : x
  2. Step 2: Convert to fraction form
    9,268.08/12,784.60 = 6,430.36/x
  3. Step 3: Cross multiply
    9,268.08x = 12,784.60 × 6,430.36
  4. Step 4: Simplify right side
    9,268.08x = 82,209,580.46
  5. Step 5: Solve for x
    x = 82,209,580.46/9,268.08
  6. Step 6: Final answer
    x = 8,870.18

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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.