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Finding the Fourth Proportional to 13,048.59, 18,007.10 and 7,080.30

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Solution

The fourth proportional to 13,048.59, 18,007.10 and 7,080.30 is: 9,770.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,048.59 : 18,007.10 = 7,080.30 : x
  2. Step 2: Convert to fraction form
    13,048.59/18,007.10 = 7,080.30/x
  3. Step 3: Cross multiply
    13,048.59x = 18,007.10 × 7,080.30
  4. Step 4: Simplify right side
    13,048.59x = 127,495,670.13
  5. Step 5: Solve for x
    x = 127,495,670.13/13,048.59
  6. Step 6: Final answer
    x = 9,770.84

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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.