Home / 13,528.45-18,671.02-7,561.36

Finding the Fourth Proportional to 13,528.45, 18,671.02 and 7,561.36

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Solution

The fourth proportional to 13,528.45, 18,671.02 and 7,561.36 is: 10,435.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,528.45 : 18,671.02 = 7,561.36 : x
  2. Step 2: Convert to fraction form
    13,528.45/18,671.02 = 7,561.36/x
  3. Step 3: Cross multiply
    13,528.45x = 18,671.02 × 7,561.36
  4. Step 4: Simplify right side
    13,528.45x = 141,178,210.43
  5. Step 5: Solve for x
    x = 141,178,210.43/13,528.45
  6. Step 6: Final answer
    x = 10,435.66

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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.