Home / 14,703.12-20,285.64-9,117.36

Finding the Fourth Proportional to 14,703.12, 20,285.64 and 9,117.36

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Solution

The fourth proportional to 14,703.12, 20,285.64 and 9,117.36 is: 12,579.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,703.12 : 20,285.64 = 9,117.36 : x
  2. Step 2: Convert to fraction form
    14,703.12/20,285.64 = 9,117.36/x
  3. Step 3: Cross multiply
    14,703.12x = 20,285.64 × 9,117.36
  4. Step 4: Simplify right side
    14,703.12x = 184,951,482.71
  5. Step 5: Solve for x
    x = 184,951,482.71/14,703.12
  6. Step 6: Final answer
    x = 12,579.06

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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.