Home / 8,975.48-12,385.53-5,618.14

Finding the Fourth Proportional to 8,975.48, 12,385.53 and 5,618.14

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Solution

The fourth proportional to 8,975.48, 12,385.53 and 5,618.14 is: 7,752.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,975.48 : 12,385.53 = 5,618.14 : x
  2. Step 2: Convert to fraction form
    8,975.48/12,385.53 = 5,618.14/x
  3. Step 3: Cross multiply
    8,975.48x = 12,385.53 × 5,618.14
  4. Step 4: Simplify right side
    8,975.48x = 69,583,641.51
  5. Step 5: Solve for x
    x = 69,583,641.51/8,975.48
  6. Step 6: Final answer
    x = 7,752.64

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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.