Home / 9,328.16-12,868.80-5,600

Finding the Fourth Proportional to 9,328.16, 12,868.80 and 5,600

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Solution

The fourth proportional to 9,328.16, 12,868.80 and 5,600 is: 7,725.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.16 : 12,868.80 = 5,600 : x
  2. Step 2: Convert to fraction form
    9,328.16/12,868.80 = 5,600/x
  3. Step 3: Cross multiply
    9,328.16x = 12,868.80 × 5,600
  4. Step 4: Simplify right side
    9,328.16x = 72,065,280
  5. Step 5: Solve for x
    x = 72,065,280/9,328.16
  6. Step 6: Final answer
    x = 7,725.56

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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.