Home / 13,069.02-18,034.18-7,690.60

Finding the Fourth Proportional to 13,069.02, 18,034.18 and 7,690.60

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Solution

The fourth proportional to 13,069.02, 18,034.18 and 7,690.60 is: 10,612.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,069.02 : 18,034.18 = 7,690.60 : x
  2. Step 2: Convert to fraction form
    13,069.02/18,034.18 = 7,690.60/x
  3. Step 3: Cross multiply
    13,069.02x = 18,034.18 × 7,690.60
  4. Step 4: Simplify right side
    13,069.02x = 138,693,664.71
  5. Step 5: Solve for x
    x = 138,693,664.71/13,069.02
  6. Step 6: Final answer
    x = 10,612.40

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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.