Home / 12,626.15-17,421.10-7,319.95

Finding the Fourth Proportional to 12,626.15, 17,421.10 and 7,319.95

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Solution

The fourth proportional to 12,626.15, 17,421.10 and 7,319.95 is: 10,099.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,626.15 : 17,421.10 = 7,319.95 : x
  2. Step 2: Convert to fraction form
    12,626.15/17,421.10 = 7,319.95/x
  3. Step 3: Cross multiply
    12,626.15x = 17,421.10 × 7,319.95
  4. Step 4: Simplify right side
    12,626.15x = 127,521,580.95
  5. Step 5: Solve for x
    x = 127,521,580.95/12,626.15
  6. Step 6: Final answer
    x = 10,099.80

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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.