Home / 12,255.79-18,386.93-6,410.83

Finding the Fourth Proportional to 12,255.79, 18,386.93 and 6,410.83

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Solution

The fourth proportional to 12,255.79, 18,386.93 and 6,410.83 is: 9,617.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,255.79 : 18,386.93 = 6,410.83 : x
  2. Step 2: Convert to fraction form
    12,255.79/18,386.93 = 6,410.83/x
  3. Step 3: Cross multiply
    12,255.79x = 18,386.93 × 6,410.83
  4. Step 4: Simplify right side
    12,255.79x = 117,875,482.45
  5. Step 5: Solve for x
    x = 117,875,482.45/12,255.79
  6. Step 6: Final answer
    x = 9,617.94

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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.