Home / 12,070.48-18,109.64-5,831.20

Finding the Fourth Proportional to 12,070.48, 18,109.64 and 5,831.20

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Solution

The fourth proportional to 12,070.48, 18,109.64 and 5,831.20 is: 8,748.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,070.48 : 18,109.64 = 5,831.20 : x
  2. Step 2: Convert to fraction form
    12,070.48/18,109.64 = 5,831.20/x
  3. Step 3: Cross multiply
    12,070.48x = 18,109.64 × 5,831.20
  4. Step 4: Simplify right side
    12,070.48x = 105,600,932.77
  5. Step 5: Solve for x
    x = 105,600,932.77/12,070.48
  6. Step 6: Final answer
    x = 8,748.69

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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.