Home / 18,875.86-28,313.46-4,835.74

Finding the Fourth Proportional to 18,875.86, 28,313.46 and 4,835.74

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Solution

The fourth proportional to 18,875.86, 28,313.46 and 4,835.74 is: 7,253.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,875.86 : 28,313.46 = 4,835.74 : x
  2. Step 2: Convert to fraction form
    18,875.86/28,313.46 = 4,835.74/x
  3. Step 3: Cross multiply
    18,875.86x = 28,313.46 × 4,835.74
  4. Step 4: Simplify right side
    18,875.86x = 136,916,531.06
  5. Step 5: Solve for x
    x = 136,916,531.06/18,875.86
  6. Step 6: Final answer
    x = 7,253.53

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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.