Home / 10,555.98-15,831.63-4,708.86

Finding the Fourth Proportional to 10,555.98, 15,831.63 and 4,708.86

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Solution

The fourth proportional to 10,555.98, 15,831.63 and 4,708.86 is: 7,062.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,555.98 : 15,831.63 = 4,708.86 : x
  2. Step 2: Convert to fraction form
    10,555.98/15,831.63 = 4,708.86/x
  3. Step 3: Cross multiply
    10,555.98x = 15,831.63 × 4,708.86
  4. Step 4: Simplify right side
    10,555.98x = 74,548,929.24
  5. Step 5: Solve for x
    x = 74,548,929.24/10,555.98
  6. Step 6: Final answer
    x = 7,062.25

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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.