Home / 14,070.36-19,416.88-7,782.60

Finding the Fourth Proportional to 14,070.36, 19,416.88 and 7,782.60

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Solution

The fourth proportional to 14,070.36, 19,416.88 and 7,782.60 is: 10,739.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,070.36 : 19,416.88 = 7,782.60 : x
  2. Step 2: Convert to fraction form
    14,070.36/19,416.88 = 7,782.60/x
  3. Step 3: Cross multiply
    14,070.36x = 19,416.88 × 7,782.60
  4. Step 4: Simplify right side
    14,070.36x = 151,113,810.29
  5. Step 5: Solve for x
    x = 151,113,810.29/14,070.36
  6. Step 6: Final answer
    x = 10,739.87

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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.