Home / 13,440.60-20,166.84-4,681.80

Finding the Fourth Proportional to 13,440.60, 20,166.84 and 4,681.80

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Solution

The fourth proportional to 13,440.60, 20,166.84 and 4,681.80 is: 7,024.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.60 : 20,166.84 = 4,681.80 : x
  2. Step 2: Convert to fraction form
    13,440.60/20,166.84 = 4,681.80/x
  3. Step 3: Cross multiply
    13,440.60x = 20,166.84 × 4,681.80
  4. Step 4: Simplify right side
    13,440.60x = 94,417,111.51
  5. Step 5: Solve for x
    x = 94,417,111.51/13,440.60
  6. Step 6: Final answer
    x = 7,024.77

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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.