Home / 8,705.08-12,015.54-5,303.32

Finding the Fourth Proportional to 8,705.08, 12,015.54 and 5,303.32

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Solution

The fourth proportional to 8,705.08, 12,015.54 and 5,303.32 is: 7,320.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,705.08 : 12,015.54 = 5,303.32 : x
  2. Step 2: Convert to fraction form
    8,705.08/12,015.54 = 5,303.32/x
  3. Step 3: Cross multiply
    8,705.08x = 12,015.54 × 5,303.32
  4. Step 4: Simplify right side
    8,705.08x = 63,722,253.59
  5. Step 5: Solve for x
    x = 63,722,253.59/8,705.08
  6. Step 6: Final answer
    x = 7,320.12

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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.