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Finding the Fourth Proportional to 12,903.48, 17,807.04 and 7,314.48

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Solution

The fourth proportional to 12,903.48, 17,807.04 and 7,314.48 is: 10,094.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,903.48 : 17,807.04 = 7,314.48 : x
  2. Step 2: Convert to fraction form
    12,903.48/17,807.04 = 7,314.48/x
  3. Step 3: Cross multiply
    12,903.48x = 17,807.04 × 7,314.48
  4. Step 4: Simplify right side
    12,903.48x = 130,249,237.94
  5. Step 5: Solve for x
    x = 130,249,237.94/12,903.48
  6. Step 6: Final answer
    x = 10,094.12

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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.