Home / 13,510.69-20,281.02-5,618.86

Finding the Fourth Proportional to 13,510.69, 20,281.02 and 5,618.86

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Solution

The fourth proportional to 13,510.69, 20,281.02 and 5,618.86 is: 8,434.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,510.69 : 20,281.02 = 5,618.86 : x
  2. Step 2: Convert to fraction form
    13,510.69/20,281.02 = 5,618.86/x
  3. Step 3: Cross multiply
    13,510.69x = 20,281.02 × 5,618.86
  4. Step 4: Simplify right side
    13,510.69x = 113,956,212.04
  5. Step 5: Solve for x
    x = 113,956,212.04/13,510.69
  6. Step 6: Final answer
    x = 8,434.52

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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.