Home / 18,913.48-28,316.88-10,008.64

Finding the Fourth Proportional to 18,913.48, 28,316.88 and 10,008.64

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Solution

The fourth proportional to 18,913.48, 28,316.88 and 10,008.64 is: 14,984.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,913.48 : 28,316.88 = 10,008.64 : x
  2. Step 2: Convert to fraction form
    18,913.48/28,316.88 = 10,008.64/x
  3. Step 3: Cross multiply
    18,913.48x = 28,316.88 × 10,008.64
  4. Step 4: Simplify right side
    18,913.48x = 283,413,457.84
  5. Step 5: Solve for x
    x = 283,413,457.84/18,913.48
  6. Step 6: Final answer
    x = 14,984.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.