Home / 11,403.02-17,029.67-9,719.21

Finding the Fourth Proportional to 11,403.02, 17,029.67 and 9,719.21

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Solution

The fourth proportional to 11,403.02, 17,029.67 and 9,719.21 is: 14,515.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,403.02 : 17,029.67 = 9,719.21 : x
  2. Step 2: Convert to fraction form
    11,403.02/17,029.67 = 9,719.21/x
  3. Step 3: Cross multiply
    11,403.02x = 17,029.67 × 9,719.21
  4. Step 4: Simplify right side
    11,403.02x = 165,514,853.81
  5. Step 5: Solve for x
    x = 165,514,853.81/11,403.02
  6. Step 6: Final answer
    x = 14,515.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.