Home / 7,683.04-10,603.20-7,087.36

Finding the Fourth Proportional to 7,683.04, 10,603.20 and 7,087.36

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Solution

The fourth proportional to 7,683.04, 10,603.20 and 7,087.36 is: 9,781.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,683.04 : 10,603.20 = 7,087.36 : x
  2. Step 2: Convert to fraction form
    7,683.04/10,603.20 = 7,087.36/x
  3. Step 3: Cross multiply
    7,683.04x = 10,603.20 × 7,087.36
  4. Step 4: Simplify right side
    7,683.04x = 75,148,695.55
  5. Step 5: Solve for x
    x = 75,148,695.55/7,683.04
  6. Step 6: Final answer
    x = 9,781.11

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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.