Home / 15,244.76-21,037.64-8,530.40

Finding the Fourth Proportional to 15,244.76, 21,037.64 and 8,530.40

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Solution

The fourth proportional to 15,244.76, 21,037.64 and 8,530.40 is: 11,771.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,244.76 : 21,037.64 = 8,530.40 : x
  2. Step 2: Convert to fraction form
    15,244.76/21,037.64 = 8,530.40/x
  3. Step 3: Cross multiply
    15,244.76x = 21,037.64 × 8,530.40
  4. Step 4: Simplify right side
    15,244.76x = 179,459,484.26
  5. Step 5: Solve for x
    x = 179,459,484.26/15,244.76
  6. Step 6: Final answer
    x = 11,771.88

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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.