Home / 12,887.04-19,328.48-10,709.76

Finding the Fourth Proportional to 12,887.04, 19,328.48 and 10,709.76

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Solution

The fourth proportional to 12,887.04, 19,328.48 and 10,709.76 is: 16,062.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887.04 : 19,328.48 = 10,709.76 : x
  2. Step 2: Convert to fraction form
    12,887.04/19,328.48 = 10,709.76/x
  3. Step 3: Cross multiply
    12,887.04x = 19,328.48 × 10,709.76
  4. Step 4: Simplify right side
    12,887.04x = 207,003,381.96
  5. Step 5: Solve for x
    x = 207,003,381.96/12,887.04
  6. Step 6: Final answer
    x = 16,062.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.