Home / 12,605.02-18,909.56-4,284.16

Finding the Fourth Proportional to 12,605.02, 18,909.56 and 4,284.16

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Solution

The fourth proportional to 12,605.02, 18,909.56 and 4,284.16 is: 6,426.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,605.02 : 18,909.56 = 4,284.16 : x
  2. Step 2: Convert to fraction form
    12,605.02/18,909.56 = 4,284.16/x
  3. Step 3: Cross multiply
    12,605.02x = 18,909.56 × 4,284.16
  4. Step 4: Simplify right side
    12,605.02x = 81,011,580.57
  5. Step 5: Solve for x
    x = 81,011,580.57/12,605.02
  6. Step 6: Final answer
    x = 6,426.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.