Home / 12,877.29-19,319.63-6,305.40

Finding the Fourth Proportional to 12,877.29, 19,319.63 and 6,305.40

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Solution

The fourth proportional to 12,877.29, 19,319.63 and 6,305.40 is: 9,459.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,877.29 : 19,319.63 = 6,305.40 : x
  2. Step 2: Convert to fraction form
    12,877.29/19,319.63 = 6,305.40/x
  3. Step 3: Cross multiply
    12,877.29x = 19,319.63 × 6,305.40
  4. Step 4: Simplify right side
    12,877.29x = 121,817,963.48
  5. Step 5: Solve for x
    x = 121,817,963.48/12,877.29
  6. Step 6: Final answer
    x = 9,459.91

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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.