Home / 10,921.29-15,071.43-6,384.23

Finding the Fourth Proportional to 10,921.29, 15,071.43 and 6,384.23

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Solution

The fourth proportional to 10,921.29, 15,071.43 and 6,384.23 is: 8,810.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921.29 : 15,071.43 = 6,384.23 : x
  2. Step 2: Convert to fraction form
    10,921.29/15,071.43 = 6,384.23/x
  3. Step 3: Cross multiply
    10,921.29x = 15,071.43 × 6,384.23
  4. Step 4: Simplify right side
    10,921.29x = 96,219,475.55
  5. Step 5: Solve for x
    x = 96,219,475.55/10,921.29
  6. Step 6: Final answer
    x = 8,810.27

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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.