Home / 18,699.42-28,040.76-5,547.18

Finding the Fourth Proportional to 18,699.42, 28,040.76 and 5,547.18

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Solution

The fourth proportional to 18,699.42, 28,040.76 and 5,547.18 is: 8,318.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,699.42 : 28,040.76 = 5,547.18 : x
  2. Step 2: Convert to fraction form
    18,699.42/28,040.76 = 5,547.18/x
  3. Step 3: Cross multiply
    18,699.42x = 28,040.76 × 5,547.18
  4. Step 4: Simplify right side
    18,699.42x = 155,547,143.06
  5. Step 5: Solve for x
    x = 155,547,143.06/18,699.42
  6. Step 6: Final answer
    x = 8,318.29

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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.