Home / 18,779.61-28,150.89-10,463.55

Finding the Fourth Proportional to 18,779.61, 28,150.89 and 10,463.55

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Solution

The fourth proportional to 18,779.61, 28,150.89 and 10,463.55 is: 15,685.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,779.61 : 28,150.89 = 10,463.55 : x
  2. Step 2: Convert to fraction form
    18,779.61/28,150.89 = 10,463.55/x
  3. Step 3: Cross multiply
    18,779.61x = 28,150.89 × 10,463.55
  4. Step 4: Simplify right side
    18,779.61x = 294,558,159.11
  5. Step 5: Solve for x
    x = 294,558,159.11/18,779.61
  6. Step 6: Final answer
    x = 15,685.00

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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.