Home / 12,263.15-16,920.74-7,225.76

Finding the Fourth Proportional to 12,263.15, 16,920.74 and 7,225.76

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Solution

The fourth proportional to 12,263.15, 16,920.74 and 7,225.76 is: 9,970.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,263.15 : 16,920.74 = 7,225.76 : x
  2. Step 2: Convert to fraction form
    12,263.15/16,920.74 = 7,225.76/x
  3. Step 3: Cross multiply
    12,263.15x = 16,920.74 × 7,225.76
  4. Step 4: Simplify right side
    12,263.15x = 122,265,085.53
  5. Step 5: Solve for x
    x = 122,265,085.53/12,263.15
  6. Step 6: Final answer
    x = 9,970.12

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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.