Home / 13,152.40-19,699.80-11,693.20

Finding the Fourth Proportional to 13,152.40, 19,699.80 and 11,693.20

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Solution

The fourth proportional to 13,152.40, 19,699.80 and 11,693.20 is: 17,514.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,152.40 : 19,699.80 = 11,693.20 : x
  2. Step 2: Convert to fraction form
    13,152.40/19,699.80 = 11,693.20/x
  3. Step 3: Cross multiply
    13,152.40x = 19,699.80 × 11,693.20
  4. Step 4: Simplify right side
    13,152.40x = 230,353,701.36
  5. Step 5: Solve for x
    x = 230,353,701.36/13,152.40
  6. Step 6: Final answer
    x = 17,514.20

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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.