Home / 13,799.52-19,038.96-8,762.40

Finding the Fourth Proportional to 13,799.52, 19,038.96 and 8,762.40

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Solution

The fourth proportional to 13,799.52, 19,038.96 and 8,762.40 is: 12,089.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,799.52 : 19,038.96 = 8,762.40 : x
  2. Step 2: Convert to fraction form
    13,799.52/19,038.96 = 8,762.40/x
  3. Step 3: Cross multiply
    13,799.52x = 19,038.96 × 8,762.40
  4. Step 4: Simplify right side
    13,799.52x = 166,826,983.10
  5. Step 5: Solve for x
    x = 166,826,983.10/13,799.52
  6. Step 6: Final answer
    x = 12,089.33

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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.