Home / 13,671.06-18,870.76-8,007.62

Finding the Fourth Proportional to 13,671.06, 18,870.76 and 8,007.62

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Solution

The fourth proportional to 13,671.06, 18,870.76 and 8,007.62 is: 11,053.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,671.06 : 18,870.76 = 8,007.62 : x
  2. Step 2: Convert to fraction form
    13,671.06/18,870.76 = 8,007.62/x
  3. Step 3: Cross multiply
    13,671.06x = 18,870.76 × 8,007.62
  4. Step 4: Simplify right side
    13,671.06x = 151,109,875.19
  5. Step 5: Solve for x
    x = 151,109,875.19/13,671.06
  6. Step 6: Final answer
    x = 11,053.27

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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.