Home / 13,244.48-18,275.22-7,578.32

Finding the Fourth Proportional to 13,244.48, 18,275.22 and 7,578.32

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Solution

The fourth proportional to 13,244.48, 18,275.22 and 7,578.32 is: 10,456.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,244.48 : 18,275.22 = 7,578.32 : x
  2. Step 2: Convert to fraction form
    13,244.48/18,275.22 = 7,578.32/x
  3. Step 3: Cross multiply
    13,244.48x = 18,275.22 × 7,578.32
  4. Step 4: Simplify right side
    13,244.48x = 138,495,465.23
  5. Step 5: Solve for x
    x = 138,495,465.23/13,244.48
  6. Step 6: Final answer
    x = 10,456.84

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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.