Home / 15,531.64-21,408.74-10,494.24

Finding the Fourth Proportional to 15,531.64, 21,408.74 and 10,494.24

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Solution

The fourth proportional to 15,531.64, 21,408.74 and 10,494.24 is: 14,465.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,531.64 : 21,408.74 = 10,494.24 : x
  2. Step 2: Convert to fraction form
    15,531.64/21,408.74 = 10,494.24/x
  3. Step 3: Cross multiply
    15,531.64x = 21,408.74 × 10,494.24
  4. Step 4: Simplify right side
    15,531.64x = 224,668,455.66
  5. Step 5: Solve for x
    x = 224,668,455.66/15,531.64
  6. Step 6: Final answer
    x = 14,465.21

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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.