Home / 14,337.60-21,480.80-8,859.20

Finding the Fourth Proportional to 14,337.60, 21,480.80 and 8,859.20

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Solution

The fourth proportional to 14,337.60, 21,480.80 and 8,859.20 is: 13,272.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,337.60 : 21,480.80 = 8,859.20 : x
  2. Step 2: Convert to fraction form
    14,337.60/21,480.80 = 8,859.20/x
  3. Step 3: Cross multiply
    14,337.60x = 21,480.80 × 8,859.20
  4. Step 4: Simplify right side
    14,337.60x = 190,302,703.36
  5. Step 5: Solve for x
    x = 190,302,703.36/14,337.60
  6. Step 6: Final answer
    x = 13,272.98

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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.