Home / 10,926.09-15,077.40-6,448.20

Finding the Fourth Proportional to 10,926.09, 15,077.40 and 6,448.20

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Solution

The fourth proportional to 10,926.09, 15,077.40 and 6,448.20 is: 8,898.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,926.09 : 15,077.40 = 6,448.20 : x
  2. Step 2: Convert to fraction form
    10,926.09/15,077.40 = 6,448.20/x
  3. Step 3: Cross multiply
    10,926.09x = 15,077.40 × 6,448.20
  4. Step 4: Simplify right side
    10,926.09x = 97,222,058.44
  5. Step 5: Solve for x
    x = 97,222,058.44/10,926.09
  6. Step 6: Final answer
    x = 8,898.16

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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.