Home / 9,369-12,929.40-5,177.16

Finding the Fourth Proportional to 9,369, 12,929.40 and 5,177.16

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Solution

The fourth proportional to 9,369, 12,929.40 and 5,177.16 is: 7,144.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,369 : 12,929.40 = 5,177.16 : x
  2. Step 2: Convert to fraction form
    9,369/12,929.40 = 5,177.16/x
  3. Step 3: Cross multiply
    9,369x = 12,929.40 × 5,177.16
  4. Step 4: Simplify right side
    9,369x = 66,937,572.50
  5. Step 5: Solve for x
    x = 66,937,572.50/9,369
  6. Step 6: Final answer
    x = 7,144.58

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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.