Home / 13,244.36-18,275.64-7,938.32

Finding the Fourth Proportional to 13,244.36, 18,275.64 and 7,938.32

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Solution

The fourth proportional to 13,244.36, 18,275.64 and 7,938.32 is: 10,953.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,244.36 : 18,275.64 = 7,938.32 : x
  2. Step 2: Convert to fraction form
    13,244.36/18,275.64 = 7,938.32/x
  3. Step 3: Cross multiply
    13,244.36x = 18,275.64 × 7,938.32
  4. Step 4: Simplify right side
    13,244.36x = 145,077,878.52
  5. Step 5: Solve for x
    x = 145,077,878.52/13,244.36
  6. Step 6: Final answer
    x = 10,953.94

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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.