Home / 11,090.40-15,307.32-6,377.40

Finding the Fourth Proportional to 11,090.40, 15,307.32 and 6,377.40

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Solution

The fourth proportional to 11,090.40, 15,307.32 and 6,377.40 is: 8,802.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,090.40 : 15,307.32 = 6,377.40 : x
  2. Step 2: Convert to fraction form
    11,090.40/15,307.32 = 6,377.40/x
  3. Step 3: Cross multiply
    11,090.40x = 15,307.32 × 6,377.40
  4. Step 4: Simplify right side
    11,090.40x = 97,620,902.57
  5. Step 5: Solve for x
    x = 97,620,902.57/11,090.40
  6. Step 6: Final answer
    x = 8,802.29

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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.