Home / 12,416.55-17,135.81-7,113.07

Finding the Fourth Proportional to 12,416.55, 17,135.81 and 7,113.07

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Solution

The fourth proportional to 12,416.55, 17,135.81 and 7,113.07 is: 9,816.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,416.55 : 17,135.81 = 7,113.07 : x
  2. Step 2: Convert to fraction form
    12,416.55/17,135.81 = 7,113.07/x
  3. Step 3: Cross multiply
    12,416.55x = 17,135.81 × 7,113.07
  4. Step 4: Simplify right side
    12,416.55x = 121,888,216.04
  5. Step 5: Solve for x
    x = 121,888,216.04/12,416.55
  6. Step 6: Final answer
    x = 9,816.59

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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.