Home / 13,256.64-18,294.57-7,288.74

Finding the Fourth Proportional to 13,256.64, 18,294.57 and 7,288.74

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Solution

The fourth proportional to 13,256.64, 18,294.57 and 7,288.74 is: 10,058.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,256.64 : 18,294.57 = 7,288.74 : x
  2. Step 2: Convert to fraction form
    13,256.64/18,294.57 = 7,288.74/x
  3. Step 3: Cross multiply
    13,256.64x = 18,294.57 × 7,288.74
  4. Step 4: Simplify right side
    13,256.64x = 133,344,364.14
  5. Step 5: Solve for x
    x = 133,344,364.14/13,256.64
  6. Step 6: Final answer
    x = 10,058.68

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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.