Home / 11,104.74-15,317.02-7,130.68

Finding the Fourth Proportional to 11,104.74, 15,317.02 and 7,130.68

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Solution

The fourth proportional to 11,104.74, 15,317.02 and 7,130.68 is: 9,835.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,104.74 : 15,317.02 = 7,130.68 : x
  2. Step 2: Convert to fraction form
    11,104.74/15,317.02 = 7,130.68/x
  3. Step 3: Cross multiply
    11,104.74x = 15,317.02 × 7,130.68
  4. Step 4: Simplify right side
    11,104.74x = 109,220,768.17
  5. Step 5: Solve for x
    x = 109,220,768.17/11,104.74
  6. Step 6: Final answer
    x = 9,835.51

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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.