Home / 7,971.30-11,000.34-4,386.47

Finding the Fourth Proportional to 7,971.30, 11,000.34 and 4,386.47

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Solution

The fourth proportional to 7,971.30, 11,000.34 and 4,386.47 is: 6,053.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,971.30 : 11,000.34 = 4,386.47 : x
  2. Step 2: Convert to fraction form
    7,971.30/11,000.34 = 4,386.47/x
  3. Step 3: Cross multiply
    7,971.30x = 11,000.34 × 4,386.47
  4. Step 4: Simplify right side
    7,971.30x = 48,252,606.40
  5. Step 5: Solve for x
    x = 48,252,606.40/7,971.30
  6. Step 6: Final answer
    x = 6,053.29

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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.