Home / 15,567.44-21,457.45-11,031.64

Finding the Fourth Proportional to 15,567.44, 21,457.45 and 11,031.64

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Solution

The fourth proportional to 15,567.44, 21,457.45 and 11,031.64 is: 15,205.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,567.44 : 21,457.45 = 11,031.64 : x
  2. Step 2: Convert to fraction form
    15,567.44/21,457.45 = 11,031.64/x
  3. Step 3: Cross multiply
    15,567.44x = 21,457.45 × 11,031.64
  4. Step 4: Simplify right side
    15,567.44x = 236,710,863.72
  5. Step 5: Solve for x
    x = 236,710,863.72/15,567.44
  6. Step 6: Final answer
    x = 15,205.51

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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.