Home / 12,402.95-17,115.75-7,097.45

Finding the Fourth Proportional to 12,402.95, 17,115.75 and 7,097.45

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Solution

The fourth proportional to 12,402.95, 17,115.75 and 7,097.45 is: 9,794.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,402.95 : 17,115.75 = 7,097.45 : x
  2. Step 2: Convert to fraction form
    12,402.95/17,115.75 = 7,097.45/x
  3. Step 3: Cross multiply
    12,402.95x = 17,115.75 × 7,097.45
  4. Step 4: Simplify right side
    12,402.95x = 121,478,094.26
  5. Step 5: Solve for x
    x = 121,478,094.26/12,402.95
  6. Step 6: Final answer
    x = 9,794.29

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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.