Home / 8,345.90-11,516.55-4,988.05

Finding the Fourth Proportional to 8,345.90, 11,516.55 and 4,988.05

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Solution

The fourth proportional to 8,345.90, 11,516.55 and 4,988.05 is: 6,883.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,345.90 : 11,516.55 = 4,988.05 : x
  2. Step 2: Convert to fraction form
    8,345.90/11,516.55 = 4,988.05/x
  3. Step 3: Cross multiply
    8,345.90x = 11,516.55 × 4,988.05
  4. Step 4: Simplify right side
    8,345.90x = 57,445,127.23
  5. Step 5: Solve for x
    x = 57,445,127.23/8,345.90
  6. Step 6: Final answer
    x = 6,883.04

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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.