Home / 10,557.51-15,831.81-3,163.02

Finding the Fourth Proportional to 10,557.51, 15,831.81 and 3,163.02

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Solution

The fourth proportional to 10,557.51, 15,831.81 and 3,163.02 is: 4,743.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,557.51 : 15,831.81 = 3,163.02 : x
  2. Step 2: Convert to fraction form
    10,557.51/15,831.81 = 3,163.02/x
  3. Step 3: Cross multiply
    10,557.51x = 15,831.81 × 3,163.02
  4. Step 4: Simplify right side
    10,557.51x = 50,076,331.67
  5. Step 5: Solve for x
    x = 50,076,331.67/10,557.51
  6. Step 6: Final answer
    x = 4,743.20

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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.