Home / 14,787.08-20,370.45-12,655.77

Finding the Fourth Proportional to 14,787.08, 20,370.45 and 12,655.77

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Solution

The fourth proportional to 14,787.08, 20,370.45 and 12,655.77 is: 17,434.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,787.08 : 20,370.45 = 12,655.77 : x
  2. Step 2: Convert to fraction form
    14,787.08/20,370.45 = 12,655.77/x
  3. Step 3: Cross multiply
    14,787.08x = 20,370.45 × 12,655.77
  4. Step 4: Simplify right side
    14,787.08x = 257,803,730.00
  5. Step 5: Solve for x
    x = 257,803,730.00/14,787.08
  6. Step 6: Final answer
    x = 17,434.39

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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.