Home / 7,378.48-10,168.14-4,721.28

Finding the Fourth Proportional to 7,378.48, 10,168.14 and 4,721.28

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Solution

The fourth proportional to 7,378.48, 10,168.14 and 4,721.28 is: 6,506.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,378.48 : 10,168.14 = 4,721.28 : x
  2. Step 2: Convert to fraction form
    7,378.48/10,168.14 = 4,721.28/x
  3. Step 3: Cross multiply
    7,378.48x = 10,168.14 × 4,721.28
  4. Step 4: Simplify right side
    7,378.48x = 48,006,636.02
  5. Step 5: Solve for x
    x = 48,006,636.02/7,378.48
  6. Step 6: Final answer
    x = 6,506.30

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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.