Home / 14,070.28-19,416.98-7,782.60

Finding the Fourth Proportional to 14,070.28, 19,416.98 and 7,782.60

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Solution

The fourth proportional to 14,070.28, 19,416.98 and 7,782.60 is: 10,739.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,070.28 : 19,416.98 = 7,782.60 : x
  2. Step 2: Convert to fraction form
    14,070.28/19,416.98 = 7,782.60/x
  3. Step 3: Cross multiply
    14,070.28x = 19,416.98 × 7,782.60
  4. Step 4: Simplify right side
    14,070.28x = 151,114,588.55
  5. Step 5: Solve for x
    x = 151,114,588.55/14,070.28
  6. Step 6: Final answer
    x = 10,739.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.