Home / 12,487.60-18,740.62-5,913.77

Finding the Fourth Proportional to 12,487.60, 18,740.62 and 5,913.77

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Solution

The fourth proportional to 12,487.60, 18,740.62 and 5,913.77 is: 8,875.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487.60 : 18,740.62 = 5,913.77 : x
  2. Step 2: Convert to fraction form
    12,487.60/18,740.62 = 5,913.77/x
  3. Step 3: Cross multiply
    12,487.60x = 18,740.62 × 5,913.77
  4. Step 4: Simplify right side
    12,487.60x = 110,827,760.74
  5. Step 5: Solve for x
    x = 110,827,760.74/12,487.60
  6. Step 6: Final answer
    x = 8,875.03

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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.