Home / 11,403.36-15,739.02-7,210.80

Finding the Fourth Proportional to 11,403.36, 15,739.02 and 7,210.80

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Solution

The fourth proportional to 11,403.36, 15,739.02 and 7,210.80 is: 9,952.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,403.36 : 15,739.02 = 7,210.80 : x
  2. Step 2: Convert to fraction form
    11,403.36/15,739.02 = 7,210.80/x
  3. Step 3: Cross multiply
    11,403.36x = 15,739.02 × 7,210.80
  4. Step 4: Simplify right side
    11,403.36x = 113,490,925.42
  5. Step 5: Solve for x
    x = 113,490,925.42/11,403.36
  6. Step 6: Final answer
    x = 9,952.41

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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.