Home / 13,148.80-19,718.40-6,572.80

Finding the Fourth Proportional to 13,148.80, 19,718.40 and 6,572.80

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Solution

The fourth proportional to 13,148.80, 19,718.40 and 6,572.80 is: 9,856.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148.80 : 19,718.40 = 6,572.80 : x
  2. Step 2: Convert to fraction form
    13,148.80/19,718.40 = 6,572.80/x
  3. Step 3: Cross multiply
    13,148.80x = 19,718.40 × 6,572.80
  4. Step 4: Simplify right side
    13,148.80x = 129,605,099.52
  5. Step 5: Solve for x
    x = 129,605,099.52/13,148.80
  6. Step 6: Final answer
    x = 9,856.80

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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.