Home / 9,012.90-12,358.74-8,700.04

Finding the Fourth Proportional to 9,012.90, 12,358.74 and 8,700.04

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Solution

The fourth proportional to 9,012.90, 12,358.74 and 8,700.04 is: 11,929.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,012.90 : 12,358.74 = 8,700.04 : x
  2. Step 2: Convert to fraction form
    9,012.90/12,358.74 = 8,700.04/x
  3. Step 3: Cross multiply
    9,012.90x = 12,358.74 × 8,700.04
  4. Step 4: Simplify right side
    9,012.90x = 107,521,580.42
  5. Step 5: Solve for x
    x = 107,521,580.42/9,012.90
  6. Step 6: Final answer
    x = 11,929.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.