Home / 15,447.51-23,153.04-7,119.90

Finding the Fourth Proportional to 15,447.51, 23,153.04 and 7,119.90

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Solution

The fourth proportional to 15,447.51, 23,153.04 and 7,119.90 is: 10,671.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,447.51 : 23,153.04 = 7,119.90 : x
  2. Step 2: Convert to fraction form
    15,447.51/23,153.04 = 7,119.90/x
  3. Step 3: Cross multiply
    15,447.51x = 23,153.04 × 7,119.90
  4. Step 4: Simplify right side
    15,447.51x = 164,847,329.50
  5. Step 5: Solve for x
    x = 164,847,329.50/15,447.51
  6. Step 6: Final answer
    x = 10,671.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.