Home / 13,464.50-18,582.45-7,880.18

Finding the Fourth Proportional to 13,464.50, 18,582.45 and 7,880.18

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Solution

The fourth proportional to 13,464.50, 18,582.45 and 7,880.18 is: 10,875.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,464.50 : 18,582.45 = 7,880.18 : x
  2. Step 2: Convert to fraction form
    13,464.50/18,582.45 = 7,880.18/x
  3. Step 3: Cross multiply
    13,464.50x = 18,582.45 × 7,880.18
  4. Step 4: Simplify right side
    13,464.50x = 146,433,050.84
  5. Step 5: Solve for x
    x = 146,433,050.84/13,464.50
  6. Step 6: Final answer
    x = 10,875.49

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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.