Home / 13,990.48-19,312.88-10,004.64

Finding the Fourth Proportional to 13,990.48, 19,312.88 and 10,004.64

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Solution

The fourth proportional to 13,990.48, 19,312.88 and 10,004.64 is: 13,810.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990.48 : 19,312.88 = 10,004.64 : x
  2. Step 2: Convert to fraction form
    13,990.48/19,312.88 = 10,004.64/x
  3. Step 3: Cross multiply
    13,990.48x = 19,312.88 × 10,004.64
  4. Step 4: Simplify right side
    13,990.48x = 193,218,411.76
  5. Step 5: Solve for x
    x = 193,218,411.76/13,990.48
  6. Step 6: Final answer
    x = 13,810.71

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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.