Home / 11,225.51-15,491.03-6,445.35

Finding the Fourth Proportional to 11,225.51, 15,491.03 and 6,445.35

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Solution

The fourth proportional to 11,225.51, 15,491.03 and 6,445.35 is: 8,894.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,225.51 : 15,491.03 = 6,445.35 : x
  2. Step 2: Convert to fraction form
    11,225.51/15,491.03 = 6,445.35/x
  3. Step 3: Cross multiply
    11,225.51x = 15,491.03 × 6,445.35
  4. Step 4: Simplify right side
    11,225.51x = 99,845,077.98
  5. Step 5: Solve for x
    x = 99,845,077.98/11,225.51
  6. Step 6: Final answer
    x = 8,894.48

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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.