Home / 9,130.48-12,600.12-4,938.72

Finding the Fourth Proportional to 9,130.48, 12,600.12 and 4,938.72

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Solution

The fourth proportional to 9,130.48, 12,600.12 and 4,938.72 is: 6,815.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,130.48 : 12,600.12 = 4,938.72 : x
  2. Step 2: Convert to fraction form
    9,130.48/12,600.12 = 4,938.72/x
  3. Step 3: Cross multiply
    9,130.48x = 12,600.12 × 4,938.72
  4. Step 4: Simplify right side
    9,130.48x = 62,228,464.65
  5. Step 5: Solve for x
    x = 62,228,464.65/9,130.48
  6. Step 6: Final answer
    x = 6,815.46

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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.