Home / 9,106.90-12,558.21-8,903.23

Finding the Fourth Proportional to 9,106.90, 12,558.21 and 8,903.23

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Solution

The fourth proportional to 9,106.90, 12,558.21 and 8,903.23 is: 12,277.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,106.90 : 12,558.21 = 8,903.23 : x
  2. Step 2: Convert to fraction form
    9,106.90/12,558.21 = 8,903.23/x
  3. Step 3: Cross multiply
    9,106.90x = 12,558.21 × 8,903.23
  4. Step 4: Simplify right side
    9,106.90x = 111,808,632.02
  5. Step 5: Solve for x
    x = 111,808,632.02/9,106.90
  6. Step 6: Final answer
    x = 12,277.35

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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.