Home / 14,008.54-19,332.65-7,720.90

Finding the Fourth Proportional to 14,008.54, 19,332.65 and 7,720.90

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Solution

The fourth proportional to 14,008.54, 19,332.65 and 7,720.90 is: 10,655.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,008.54 : 19,332.65 = 7,720.90 : x
  2. Step 2: Convert to fraction form
    14,008.54/19,332.65 = 7,720.90/x
  3. Step 3: Cross multiply
    14,008.54x = 19,332.65 × 7,720.90
  4. Step 4: Simplify right side
    14,008.54x = 149,265,457.39
  5. Step 5: Solve for x
    x = 149,265,457.39/14,008.54
  6. Step 6: Final answer
    x = 10,655.32

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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.