Home / 9,180.16-12,668.50-4,988.40

Finding the Fourth Proportional to 9,180.16, 12,668.50 and 4,988.40

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Solution

The fourth proportional to 9,180.16, 12,668.50 and 4,988.40 is: 6,883.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,180.16 : 12,668.50 = 4,988.40 : x
  2. Step 2: Convert to fraction form
    9,180.16/12,668.50 = 4,988.40/x
  3. Step 3: Cross multiply
    9,180.16x = 12,668.50 × 4,988.40
  4. Step 4: Simplify right side
    9,180.16x = 63,195,545.40
  5. Step 5: Solve for x
    x = 63,195,545.40/9,180.16
  6. Step 6: Final answer
    x = 6,883.93

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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.