Home / 13,888.87-20,835.47-4,526.71

Finding the Fourth Proportional to 13,888.87, 20,835.47 and 4,526.71

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Solution

The fourth proportional to 13,888.87, 20,835.47 and 4,526.71 is: 6,790.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888.87 : 20,835.47 = 4,526.71 : x
  2. Step 2: Convert to fraction form
    13,888.87/20,835.47 = 4,526.71/x
  3. Step 3: Cross multiply
    13,888.87x = 20,835.47 × 4,526.71
  4. Step 4: Simplify right side
    13,888.87x = 94,316,089.63
  5. Step 5: Solve for x
    x = 94,316,089.63/13,888.87
  6. Step 6: Final answer
    x = 6,790.77

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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.