Home / 12,329.12-17,013.60-6,740.16

Finding the Fourth Proportional to 12,329.12, 17,013.60 and 6,740.16

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Solution

The fourth proportional to 12,329.12, 17,013.60 and 6,740.16 is: 9,301.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,329.12 : 17,013.60 = 6,740.16 : x
  2. Step 2: Convert to fraction form
    12,329.12/17,013.60 = 6,740.16/x
  3. Step 3: Cross multiply
    12,329.12x = 17,013.60 × 6,740.16
  4. Step 4: Simplify right side
    12,329.12x = 114,674,386.18
  5. Step 5: Solve for x
    x = 114,674,386.18/12,329.12
  6. Step 6: Final answer
    x = 9,301.10

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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.