Home / 13,865.55-20,798.67-4,981.47

Finding the Fourth Proportional to 13,865.55, 20,798.67 and 4,981.47

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Solution

The fourth proportional to 13,865.55, 20,798.67 and 4,981.47 is: 7,472.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,865.55 : 20,798.67 = 4,981.47 : x
  2. Step 2: Convert to fraction form
    13,865.55/20,798.67 = 4,981.47/x
  3. Step 3: Cross multiply
    13,865.55x = 20,798.67 × 4,981.47
  4. Step 4: Simplify right side
    13,865.55x = 103,607,925.74
  5. Step 5: Solve for x
    x = 103,607,925.74/13,865.55
  6. Step 6: Final answer
    x = 7,472.33

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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.