Home / 13,775.07-19,009.51-7,487.45

Finding the Fourth Proportional to 13,775.07, 19,009.51 and 7,487.45

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Solution

The fourth proportional to 13,775.07, 19,009.51 and 7,487.45 is: 10,332.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,775.07 : 19,009.51 = 7,487.45 : x
  2. Step 2: Convert to fraction form
    13,775.07/19,009.51 = 7,487.45/x
  3. Step 3: Cross multiply
    13,775.07x = 19,009.51 × 7,487.45
  4. Step 4: Simplify right side
    13,775.07x = 142,332,623.16
  5. Step 5: Solve for x
    x = 142,332,623.16/13,775.07
  6. Step 6: Final answer
    x = 10,332.62

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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.