Home / 12,279.13-16,927.28-9,762.25

Finding the Fourth Proportional to 12,279.13, 16,927.28 and 9,762.25

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Solution

The fourth proportional to 12,279.13, 16,927.28 and 9,762.25 is: 13,457.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,279.13 : 16,927.28 = 9,762.25 : x
  2. Step 2: Convert to fraction form
    12,279.13/16,927.28 = 9,762.25/x
  3. Step 3: Cross multiply
    12,279.13x = 16,927.28 × 9,762.25
  4. Step 4: Simplify right side
    12,279.13x = 165,248,339.18
  5. Step 5: Solve for x
    x = 165,248,339.18/12,279.13
  6. Step 6: Final answer
    x = 13,457.66

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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.