Home / 13,651.41-18,838.86-7,683.17

Finding the Fourth Proportional to 13,651.41, 18,838.86 and 7,683.17

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Solution

The fourth proportional to 13,651.41, 18,838.86 and 7,683.17 is: 10,602.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,651.41 : 18,838.86 = 7,683.17 : x
  2. Step 2: Convert to fraction form
    13,651.41/18,838.86 = 7,683.17/x
  3. Step 3: Cross multiply
    13,651.41x = 18,838.86 × 7,683.17
  4. Step 4: Simplify right side
    13,651.41x = 144,742,069.79
  5. Step 5: Solve for x
    x = 144,742,069.79/13,651.41
  6. Step 6: Final answer
    x = 10,602.72

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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.