Home / 8,987.64-13,485.12-4,053.84

Finding the Fourth Proportional to 8,987.64, 13,485.12 and 4,053.84

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Solution

The fourth proportional to 8,987.64, 13,485.12 and 4,053.84 is: 6,082.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987.64 : 13,485.12 = 4,053.84 : x
  2. Step 2: Convert to fraction form
    8,987.64/13,485.12 = 4,053.84/x
  3. Step 3: Cross multiply
    8,987.64x = 13,485.12 × 4,053.84
  4. Step 4: Simplify right side
    8,987.64x = 54,666,518.86
  5. Step 5: Solve for x
    x = 54,666,518.86/8,987.64
  6. Step 6: Final answer
    x = 6,082.41

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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.