Home / 8,988.30-12,395.84-5,445.36

Finding the Fourth Proportional to 8,988.30, 12,395.84 and 5,445.36

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Solution

The fourth proportional to 8,988.30, 12,395.84 and 5,445.36 is: 7,509.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.30 : 12,395.84 = 5,445.36 : x
  2. Step 2: Convert to fraction form
    8,988.30/12,395.84 = 5,445.36/x
  3. Step 3: Cross multiply
    8,988.30x = 12,395.84 × 5,445.36
  4. Step 4: Simplify right side
    8,988.30x = 67,499,784.08
  5. Step 5: Solve for x
    x = 67,499,784.08/8,988.30
  6. Step 6: Final answer
    x = 7,509.74

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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.