Home / 6,918.39-9,547.35-3,774.57

Finding the Fourth Proportional to 6,918.39, 9,547.35 and 3,774.57

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Solution

The fourth proportional to 6,918.39, 9,547.35 and 3,774.57 is: 5,208.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.39 : 9,547.35 = 3,774.57 : x
  2. Step 2: Convert to fraction form
    6,918.39/9,547.35 = 3,774.57/x
  3. Step 3: Cross multiply
    6,918.39x = 9,547.35 × 3,774.57
  4. Step 4: Simplify right side
    6,918.39x = 36,037,140.89
  5. Step 5: Solve for x
    x = 36,037,140.89/6,918.39
  6. Step 6: Final answer
    x = 5,208.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.