Home / 11,030.06-15,215.52-6,989.58

Finding the Fourth Proportional to 11,030.06, 15,215.52 and 6,989.58

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Solution

The fourth proportional to 11,030.06, 15,215.52 and 6,989.58 is: 9,641.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,030.06 : 15,215.52 = 6,989.58 : x
  2. Step 2: Convert to fraction form
    11,030.06/15,215.52 = 6,989.58/x
  3. Step 3: Cross multiply
    11,030.06x = 15,215.52 × 6,989.58
  4. Step 4: Simplify right side
    11,030.06x = 106,350,094.28
  5. Step 5: Solve for x
    x = 106,350,094.28/11,030.06
  6. Step 6: Final answer
    x = 9,641.84

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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.