Home / 13,440.84-20,070.67-10,980.52

Finding the Fourth Proportional to 13,440.84, 20,070.67 and 10,980.52

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Solution

The fourth proportional to 13,440.84, 20,070.67 and 10,980.52 is: 16,396.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.84 : 20,070.67 = 10,980.52 : x
  2. Step 2: Convert to fraction form
    13,440.84/20,070.67 = 10,980.52/x
  3. Step 3: Cross multiply
    13,440.84x = 20,070.67 × 10,980.52
  4. Step 4: Simplify right side
    13,440.84x = 220,386,393.35
  5. Step 5: Solve for x
    x = 220,386,393.35/13,440.84
  6. Step 6: Final answer
    x = 16,396.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.