Home / 18,742.61-28,095.56-9,368.62

Finding the Fourth Proportional to 18,742.61, 28,095.56 and 9,368.62

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Solution

The fourth proportional to 18,742.61, 28,095.56 and 9,368.62 is: 14,043.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,742.61 : 28,095.56 = 9,368.62 : x
  2. Step 2: Convert to fraction form
    18,742.61/28,095.56 = 9,368.62/x
  3. Step 3: Cross multiply
    18,742.61x = 28,095.56 × 9,368.62
  4. Step 4: Simplify right side
    18,742.61x = 263,216,543.38
  5. Step 5: Solve for x
    x = 263,216,543.38/18,742.61
  6. Step 6: Final answer
    x = 14,043.75

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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.