Home / 16,666.60-24,999.90-8,871.40

Finding the Fourth Proportional to 16,666.60, 24,999.90 and 8,871.40

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Solution

The fourth proportional to 16,666.60, 24,999.90 and 8,871.40 is: 13,307.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,666.60 : 24,999.90 = 8,871.40 : x
  2. Step 2: Convert to fraction form
    16,666.60/24,999.90 = 8,871.40/x
  3. Step 3: Cross multiply
    16,666.60x = 24,999.90 × 8,871.40
  4. Step 4: Simplify right side
    16,666.60x = 221,784,112.86
  5. Step 5: Solve for x
    x = 221,784,112.86/16,666.60
  6. Step 6: Final answer
    x = 13,307.10

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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.